# Zyxel vulnerabilities > Zyxel has 306 published vulnerabilities across 878 products in our catalogue. 12 of them are on the list of flaws known to be exploited, so criminals are using them now. The most affected product is Usg Flex 500, with 54. If you run Zyxel software, patch the exploited flaws first. Canonical page: https://www.precursorintelligence.com/vendors/zyxel ## At a glance - **Published vulnerabilities:** 306 - **Known to be exploited:** 12 - **Products:** 878 - **Versions:** 1,329 - **Most recently added to the known-exploited list:** [CVE-2024-40891](https://www.precursorintelligence.com/what-is/cve-2024-40891), 11 February 2025. We keep watching the list. ## Which Zyxel products have the most vulnerabilities? - [Usg Flex 500](https://www.precursorintelligence.com/product/zyxel/usg_flex_500): 54 published vulnerabilities, 0 versions - [Usg Flex 200](https://www.precursorintelligence.com/product/zyxel/usg_flex_200): 54 published vulnerabilities, 0 versions - [Usg Flex 700](https://www.precursorintelligence.com/product/zyxel/usg_flex_700): 54 published vulnerabilities, 0 versions - [Usg Flex 100w](https://www.precursorintelligence.com/product/zyxel/usg_flex_100w): 54 published vulnerabilities, 0 versions - [Usg Flex 100](https://www.precursorintelligence.com/product/zyxel/usg_flex_100): 50 published vulnerabilities, 0 versions - [Usg Flex 50w](https://www.precursorintelligence.com/product/zyxel/usg_flex_50w): 45 published vulnerabilities, 0 versions - [Atp200](https://www.precursorintelligence.com/product/zyxel/atp200): 43 published vulnerabilities, 0 versions - [Atp500](https://www.precursorintelligence.com/product/zyxel/atp500): 43 published vulnerabilities, 0 versions - [Atp800](https://www.precursorintelligence.com/product/zyxel/atp800): 43 published vulnerabilities, 0 versions - [Usg Flex 50](https://www.precursorintelligence.com/product/zyxel/usg_flex_50): 42 published vulnerabilities, 0 versions Each product page lists its own known-exploited flaws. ## Which Zyxel vulnerabilities are being exploited? 12 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2024-40891](https://www.precursorintelligence.com/what-is/cve-2024-40891): Zyxel DSL CPE OS Command Injection Vulnerability. High, CVSS 8.8, chance of use in 30 days 22%, known exploited since 11 February 2025. - [CVE-2024-40890](https://www.precursorintelligence.com/what-is/cve-2024-40890): Zyxel DSL CPE OS Command Injection Vulnerability. High, CVSS 8.8, chance of use in 30 days 21%, known exploited since 11 February 2025. - [CVE-2024-11667](https://www.precursorintelligence.com/what-is/cve-2024-11667): Zyxel Multiple Firewalls Path Traversal Vulnerability. High, CVSS 7.5, chance of use in 30 days 2.9%, known exploited since 3 December 2024. - [CVE-2017-6884](https://www.precursorintelligence.com/what-is/cve-2017-6884): Zyxel EMG2926 Routers Command Injection Vulnerability. High, CVSS 8.8, chance of use in 30 days 33%, known exploited since 18 September 2023. - [CVE-2017-18368](https://www.precursorintelligence.com/what-is/cve-2017-18368): Zyxel P660HN-T1A Routers Command Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 94%, known exploited since 7 August 2023. - [CVE-2023-27992](https://www.precursorintelligence.com/what-is/cve-2023-27992): Zyxel Multiple NAS Devices Command Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 83%, known exploited since 23 June 2023. - [CVE-2023-33009](https://www.precursorintelligence.com/what-is/cve-2023-33009): Zyxel Multiple Firewalls Buffer Overflow Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 28%, known exploited since 5 June 2023. - [CVE-2023-33010](https://www.precursorintelligence.com/what-is/cve-2023-33010): Zyxel Multiple Firewalls Buffer Overflow Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 29%, known exploited since 5 June 2023. - [CVE-2023-28771](https://www.precursorintelligence.com/what-is/cve-2023-28771): Zyxel Multiple Firewalls OS Command Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 31 May 2023. - [CVE-2022-30525](https://www.precursorintelligence.com/what-is/cve-2022-30525): Zyxel Multiple Firewalls OS Command Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 16 May 2022. - [CVE-2020-9054](https://www.precursorintelligence.com/what-is/cve-2020-9054): Zyxel Multiple NAS Devices OS Command Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 25 March 2022. - [CVE-2020-29583](https://www.precursorintelligence.com/what-is/cve-2020-29583): Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 90%, known exploited since 3 November 2021. ## Which Zyxel flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2020-9054](https://www.precursorintelligence.com/what-is/cve-2020-9054): >99%, Critical (CVSS 9.8), known exploited - [CVE-2022-30525](https://www.precursorintelligence.com/what-is/cve-2022-30525): >99%, Critical (CVSS 9.8), known exploited - [CVE-2023-28771](https://www.precursorintelligence.com/what-is/cve-2023-28771): >99%, Critical (CVSS 9.8), known exploited - [CVE-2022-0342](https://www.precursorintelligence.com/what-is/cve-2022-0342): 95%, Critical (CVSS 9.8) - [CVE-2017-18368](https://www.precursorintelligence.com/what-is/cve-2017-18368): 94%, Critical (CVSS 9.8), known exploited - [CVE-2020-29583](https://www.precursorintelligence.com/what-is/cve-2020-29583): 90%, Critical (CVSS 9.8), known exploited - [CVE-2024-29972](https://www.precursorintelligence.com/what-is/cve-2024-29972): 89%, Critical (CVSS 9.8) - [CVE-2024-29973](https://www.precursorintelligence.com/what-is/cve-2024-29973): 86%, Critical (CVSS 9.8) - [CVE-2023-27992](https://www.precursorintelligence.com/what-is/cve-2023-27992): 83%, Critical (CVSS 9.8), known exploited - [CVE-2021-4039](https://www.precursorintelligence.com/what-is/cve-2021-4039): 71%, Critical (CVSS 9.8) ## All Zyxel products we track 347 products with at least one tracked version, most vulnerabilities first (the top 150 here; every product is on the page): - [Cloudcnm Secumanager](https://www.precursorintelligence.com/product/zyxel/cloudcnm_secumanager): 35 vulnerabilities, 2 versions - [Gs1900-10hp Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-10hp_firmware): 35 vulnerabilities, 11 versions - [Usg Flex 700 Firmware](https://www.precursorintelligence.com/product/zyxel/usg_flex_700_firmware): 34 vulnerabilities, 9 versions - [Usg Flex 500 Firmware](https://www.precursorintelligence.com/product/zyxel/usg_flex_500_firmware): 34 vulnerabilities, 11 versions - [Usg Flex 100w Firmware](https://www.precursorintelligence.com/product/zyxel/usg_flex_100w_firmware): 34 vulnerabilities, 10 versions - [Usg Flex 200 Firmware](https://www.precursorintelligence.com/product/zyxel/usg_flex_200_firmware): 34 vulnerabilities, 10 versions - [Usg Flex 100 Firmware](https://www.precursorintelligence.com/product/zyxel/usg_flex_100_firmware): 30 vulnerabilities, 10 versions - [Usg Flex 50w Firmware](https://www.precursorintelligence.com/product/zyxel/usg_flex_50w_firmware): 26 vulnerabilities, 10 versions - [Atp800 Firmware](https://www.precursorintelligence.com/product/zyxel/atp800_firmware): 25 vulnerabilities, 11 versions - [Atp500 Firmware](https://www.precursorintelligence.com/product/zyxel/atp500_firmware): 25 vulnerabilities, 11 versions - [Atp200 Firmware](https://www.precursorintelligence.com/product/zyxel/atp200_firmware): 25 vulnerabilities, 11 versions - [Vpn50 Firmware](https://www.precursorintelligence.com/product/zyxel/vpn50_firmware): 24 vulnerabilities, 8 versions - [Vpn100 Firmware](https://www.precursorintelligence.com/product/zyxel/vpn100_firmware): 24 vulnerabilities, 8 versions - [Atp100 Firmware](https://www.precursorintelligence.com/product/zyxel/atp100_firmware): 24 vulnerabilities, 12 versions - [Nas326 Firmware](https://www.precursorintelligence.com/product/zyxel/nas326_firmware): 24 vulnerabilities, 9 versions - [Vpn300 Firmware](https://www.precursorintelligence.com/product/zyxel/vpn300_firmware): 24 vulnerabilities, 8 versions - [Atp700 Firmware](https://www.precursorintelligence.com/product/zyxel/atp700_firmware): 23 vulnerabilities, 8 versions - [Vpn1000 Firmware](https://www.precursorintelligence.com/product/zyxel/vpn1000_firmware): 23 vulnerabilities, 8 versions - [Usg Flex 50 Firmware](https://www.precursorintelligence.com/product/zyxel/usg_flex_50_firmware): 23 vulnerabilities, 8 versions - [Atp100w Firmware](https://www.precursorintelligence.com/product/zyxel/atp100w_firmware): 23 vulnerabilities, 8 versions - [Zld](https://www.precursorintelligence.com/product/zyxel/zld): 21 vulnerabilities, 15 versions - [Usg 20w-VPN Firmware](https://www.precursorintelligence.com/product/zyxel/usg_20w-vpn_firmware): 19 vulnerabilities, 5 versions - [Nas542 Firmware](https://www.precursorintelligence.com/product/zyxel/nas542_firmware): 18 vulnerabilities, 8 versions - [Dx5401-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/dx5401-b0_firmware): 17 vulnerabilities, 5 versions - [Gs1900-8 Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-8_firmware): 16 vulnerabilities, 11 versions - [Gs1900-24 Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-24_firmware): 16 vulnerabilities, 11 versions - [Ex5401-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex5401-b0_firmware): 15 vulnerabilities, 5 versions - [Zynos](https://www.precursorintelligence.com/product/zyxel/zynos): 15 vulnerabilities, 5 versions - [Usg20-VPN Firmware](https://www.precursorintelligence.com/product/zyxel/usg20-vpn_firmware): 15 vulnerabilities, 10 versions - [Emg5723-T50k Firmware](https://www.precursorintelligence.com/product/zyxel/emg5723-t50k_firmware): 15 vulnerabilities, 6 versions - [Emg5523-T50b Firmware](https://www.precursorintelligence.com/product/zyxel/emg5523-t50b_firmware): 15 vulnerabilities, 8 versions - [Emg3525-T50b Firmware](https://www.precursorintelligence.com/product/zyxel/emg3525-t50b_firmware): 15 vulnerabilities, 8 versions - [Gs1900-16 Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-16_firmware): 15 vulnerabilities, 11 versions - [Vmg8623-T50b Firmware](https://www.precursorintelligence.com/product/zyxel/vmg8623-t50b_firmware): 15 vulnerabilities, 7 versions - [Gs1900-24e Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-24e_firmware): 15 vulnerabilities, 11 versions - [Vmg8825-T50k Firmware](https://www.precursorintelligence.com/product/zyxel/vmg8825-t50k_firmware): 15 vulnerabilities, 9 versions - [Vmg3927-T50k Firmware](https://www.precursorintelligence.com/product/zyxel/vmg3927-t50k_firmware): 15 vulnerabilities, 6 versions - [Gs1900-8hp Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-8hp_firmware): 15 vulnerabilities, 11 versions - [Gs1900-48 Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-48_firmware): 15 vulnerabilities, 11 versions - [Usg 2200-VPN Firmware](https://www.precursorintelligence.com/product/zyxel/usg_2200-vpn_firmware): 14 vulnerabilities, 4 versions - [Ax7501-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/ax7501-b0_firmware): 14 vulnerabilities, 5 versions - [Pm7300-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/pm7300-t0_firmware): 13 vulnerabilities, 6 versions - [Dx3301-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/dx3301-t0_firmware): 13 vulnerabilities, 6 versions - [Ex3510-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex3510-b0_firmware): 12 vulnerabilities, 7 versions - [Wx5600-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/wx5600-t0_firmware): 12 vulnerabilities, 5 versions - [Vmg3625-T50b Firmware](https://www.precursorintelligence.com/product/zyxel/vmg3625-t50b_firmware): 12 vulnerabilities, 7 versions - [Ex3301-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex3301-t0_firmware): 12 vulnerabilities, 6 versions - [Ex5601-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex5601-t0_firmware): 12 vulnerabilities, 6 versions - [Ex5601-T1 Firmware](https://www.precursorintelligence.com/product/zyxel/ex5601-t1_firmware): 12 vulnerabilities, 6 versions - [Vmg4005-B60a Firmware](https://www.precursorintelligence.com/product/zyxel/vmg4005-b60a_firmware): 11 vulnerabilities, 4 versions - [Vmg4005-B50a Firmware](https://www.precursorintelligence.com/product/zyxel/vmg4005-b50a_firmware): 11 vulnerabilities, 4 versions - [Wx3100-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/wx3100-t0_firmware): 11 vulnerabilities, 6 versions - [Usg20w-VPN Firmware](https://www.precursorintelligence.com/product/zyxel/usg20w-vpn_firmware): 11 vulnerabilities, 9 versions - [Ex5512-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex5512-t0_firmware): 11 vulnerabilities, 6 versions - [Usg310 Firmware](https://www.precursorintelligence.com/product/zyxel/usg310_firmware): 10 vulnerabilities, 7 versions - [Usg210 Firmware](https://www.precursorintelligence.com/product/zyxel/usg210_firmware): 10 vulnerabilities, 7 versions - [Pm5100-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/pm5100-t0_firmware): 10 vulnerabilities, 5 versions - [Pm3100-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/pm3100-t0_firmware): 10 vulnerabilities, 5 versions - [Nwa210ax Firmware](https://www.precursorintelligence.com/product/zyxel/nwa210ax_firmware): 10 vulnerabilities, 8 versions - [Nwa110ax Firmware](https://www.precursorintelligence.com/product/zyxel/nwa110ax_firmware): 10 vulnerabilities, 8 versions - [Wax510d Firmware](https://www.precursorintelligence.com/product/zyxel/wax510d_firmware): 10 vulnerabilities, 8 versions - [Wax610d Firmware](https://www.precursorintelligence.com/product/zyxel/wax610d_firmware): 10 vulnerabilities, 8 versions - [Wax630s Firmware](https://www.precursorintelligence.com/product/zyxel/wax630s_firmware): 10 vulnerabilities, 8 versions - [Ex5510-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex5510-b0_firmware): 10 vulnerabilities, 6 versions - [Wax650s Firmware](https://www.precursorintelligence.com/product/zyxel/wax650s_firmware): 10 vulnerabilities, 8 versions - [Ex5501-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex5501-b0_firmware): 10 vulnerabilities, 3 versions - [Wx3401-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/wx3401-b0_firmware): 10 vulnerabilities, 4 versions - [Wac500 Firmware](https://www.precursorintelligence.com/product/zyxel/wac500_firmware): 9 vulnerabilities, 6 versions - [Zywall Vpn300 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_vpn300_firmware): 9 vulnerabilities, 7 versions - [Ex3300-T1 Firmware](https://www.precursorintelligence.com/product/zyxel/ex3300-t1_firmware): 9 vulnerabilities, 6 versions - [Usg60 Firmware](https://www.precursorintelligence.com/product/zyxel/usg60_firmware): 9 vulnerabilities, 8 versions - [Gs1900-24ep Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-24ep_firmware): 9 vulnerabilities, 9 versions - [Usg60w Firmware](https://www.precursorintelligence.com/product/zyxel/usg60w_firmware): 9 vulnerabilities, 8 versions - [Zywall Vpn100 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_vpn100_firmware): 9 vulnerabilities, 7 versions - [Ex3500-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex3500-t0_firmware): 9 vulnerabilities, 5 versions - [Gs1900-24hp Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-24hp_firmware): 9 vulnerabilities, 4 versions - [Dx5401-B1 Firmware](https://www.precursorintelligence.com/product/zyxel/dx5401-b1_firmware): 9 vulnerabilities, 5 versions - [Zywall Vpn2s Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_vpn2s_firmware): 9 vulnerabilities, 5 versions - [Usg40 Firmware](https://www.precursorintelligence.com/product/zyxel/usg40_firmware): 9 vulnerabilities, 8 versions - [Usg40w Firmware](https://www.precursorintelligence.com/product/zyxel/usg40w_firmware): 9 vulnerabilities, 8 versions - [Ex3501-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex3501-t0_firmware): 9 vulnerabilities, 5 versions - [Nbg-418n](https://www.precursorintelligence.com/product/zyxel/nbg-418n): 9 vulnerabilities, 1 version - [Ex5401-B1 Firmware](https://www.precursorintelligence.com/product/zyxel/ex5401-b1_firmware): 9 vulnerabilities, 5 versions - [Gs1900-24hpv2 Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-24hpv2_firmware): 9 vulnerabilities, 9 versions - [Gs1900-48hp Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-48hp_firmware): 9 vulnerabilities, 4 versions - [Gs1900-48hpv2 Firmware](https://www.precursorintelligence.com/product/zyxel/gs1900-48hpv2_firmware): 9 vulnerabilities, 9 versions - [Dx3300-T1 Firmware](https://www.precursorintelligence.com/product/zyxel/dx3300-t1_firmware): 9 vulnerabilities, 6 versions - [Ax7501-B1 Firmware](https://www.precursorintelligence.com/product/zyxel/ax7501-b1_firmware): 9 vulnerabilities, 5 versions - [Nwa50ax Firmware](https://www.precursorintelligence.com/product/zyxel/nwa50ax_firmware): 9 vulnerabilities, 6 versions - [Nwa55axe Firmware](https://www.precursorintelligence.com/product/zyxel/nwa55axe_firmware): 9 vulnerabilities, 6 versions - [Dx4510-B1 Firmware](https://www.precursorintelligence.com/product/zyxel/dx4510-b1_firmware): 9 vulnerabilities, 4 versions - [Nwa90ax Firmware](https://www.precursorintelligence.com/product/zyxel/nwa90ax_firmware): 9 vulnerabilities, 6 versions - [Wac500h Firmware](https://www.precursorintelligence.com/product/zyxel/wac500h_firmware): 9 vulnerabilities, 6 versions - [Nwa1123acv3 Firmware](https://www.precursorintelligence.com/product/zyxel/nwa1123acv3_firmware): 9 vulnerabilities, 6 versions - [Zywall VPN 50 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_vpn_50_firmware): 8 vulnerabilities, 4 versions - [Lte7480-M804 Firmware](https://www.precursorintelligence.com/product/zyxel/lte7480-m804_firmware): 8 vulnerabilities, 2 versions - [Zywall 310 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_310_firmware): 8 vulnerabilities, 7 versions - [Zywall 1100 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_1100_firmware): 8 vulnerabilities, 7 versions - [Zywall 110 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_110_firmware): 8 vulnerabilities, 7 versions - [Nbg-418n Firmware](https://www.precursorintelligence.com/product/zyxel/nbg-418n_firmware): 8 vulnerabilities, 4 versions - [Nr7101 Firmware](https://www.precursorintelligence.com/product/zyxel/nr7101_firmware): 8 vulnerabilities, 3 versions - [Ex7710-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex7710-b0_firmware): 8 vulnerabilities, 6 versions - [Zywall Vpn50 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_vpn50_firmware): 8 vulnerabilities, 6 versions - [Zywall VPN 300 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_vpn_300_firmware): 8 vulnerabilities, 4 versions - [Zywall VPN 100 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_vpn_100_firmware): 8 vulnerabilities, 4 versions - [Prestige 660](https://www.precursorintelligence.com/product/zyxel/prestige_660): 8 vulnerabilities, 2 versions - [Prestige 661](https://www.precursorintelligence.com/product/zyxel/prestige_661): 8 vulnerabilities, 1 version - [Px3321-T1 Firmware](https://www.precursorintelligence.com/product/zyxel/px3321-t1_firmware): 8 vulnerabilities, 8 versions - [Nebula Nr7101 Firmware](https://www.precursorintelligence.com/product/zyxel/nebula_nr7101_firmware): 7 vulnerabilities, 3 versions - [Wax620d-6e Firmware](https://www.precursorintelligence.com/product/zyxel/wax620d-6e_firmware): 7 vulnerabilities, 6 versions - [Usg 40 Firmware](https://www.precursorintelligence.com/product/zyxel/usg_40_firmware): 7 vulnerabilities, 3 versions - [Zywall Atp200 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_atp200_firmware): 7 vulnerabilities, 5 versions - [Zywall Atp800 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_atp800_firmware): 7 vulnerabilities, 5 versions - [Lte7490-M904 Firmware](https://www.precursorintelligence.com/product/zyxel/lte7490-m904_firmware): 7 vulnerabilities, 2 versions - [Usg 60 Firmware](https://www.precursorintelligence.com/product/zyxel/usg_60_firmware): 7 vulnerabilities, 3 versions - [Nwa220ax-6e Firmware](https://www.precursorintelligence.com/product/zyxel/nwa220ax-6e_firmware): 7 vulnerabilities, 6 versions - [Usg 60w Firmware](https://www.precursorintelligence.com/product/zyxel/usg_60w_firmware): 7 vulnerabilities, 3 versions - [Ex3300-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex3300-t0_firmware): 7 vulnerabilities, 5 versions - [Dx3300-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/dx3300-t0_firmware): 7 vulnerabilities, 5 versions - [Zywall Atp100 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_atp100_firmware): 7 vulnerabilities, 5 versions - [Pmg5317-T20b Firmware](https://www.precursorintelligence.com/product/zyxel/pmg5317-t20b_firmware): 7 vulnerabilities, 1 version - [Pmg5617ga Firmware](https://www.precursorintelligence.com/product/zyxel/pmg5617ga_firmware): 7 vulnerabilities, 1 version - [Ex7501-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex7501-b0_firmware): 7 vulnerabilities, 4 versions - [P-660hw](https://www.precursorintelligence.com/product/zyxel/p-660hw): 7 vulnerabilities, 2 versions - [Pmg5622ga Firmware](https://www.precursorintelligence.com/product/zyxel/pmg5622ga_firmware): 7 vulnerabilities, 1 version - [Ex5600-T1 Firmware](https://www.precursorintelligence.com/product/zyxel/ex5600-t1_firmware): 7 vulnerabilities, 2 versions - [Prestige](https://www.precursorintelligence.com/product/zyxel/prestige): 7 vulnerabilities, 11 versions - [Zywall Atp700 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_atp700_firmware): 7 vulnerabilities, 5 versions - [Usg 40w Firmware](https://www.precursorintelligence.com/product/zyxel/usg_40w_firmware): 7 vulnerabilities, 3 versions - [Nr7102 Firmware](https://www.precursorintelligence.com/product/zyxel/nr7102_firmware): 7 vulnerabilities, 2 versions - [Wax655e Firmware](https://www.precursorintelligence.com/product/zyxel/wax655e_firmware): 7 vulnerabilities, 6 versions - [Zywall Atp100w Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_atp100w_firmware): 7 vulnerabilities, 5 versions - [Dx4510-B0 Firmware](https://www.precursorintelligence.com/product/zyxel/dx4510-b0_firmware): 7 vulnerabilities, 5 versions - [Wax640s-6e Firmware](https://www.precursorintelligence.com/product/zyxel/wax640s-6e_firmware): 7 vulnerabilities, 6 versions - [Zywall Atp500 Firmware](https://www.precursorintelligence.com/product/zyxel/zywall_atp500_firmware): 7 vulnerabilities, 5 versions - [Usg1100 Firmware](https://www.precursorintelligence.com/product/zyxel/usg1100_firmware): 6 vulnerabilities, 7 versions - [Wbe660s Firmware](https://www.precursorintelligence.com/product/zyxel/wbe660s_firmware): 6 vulnerabilities, 6 versions - [Usg1900 Firmware](https://www.precursorintelligence.com/product/zyxel/usg1900_firmware): 6 vulnerabilities, 7 versions - [Ex3510-B1 Firmware](https://www.precursorintelligence.com/product/zyxel/ex3510-b1_firmware): 6 vulnerabilities, 4 versions - [Usg110 Firmware](https://www.precursorintelligence.com/product/zyxel/usg110_firmware): 6 vulnerabilities, 7 versions - [Ex3600-T0 Firmware](https://www.precursorintelligence.com/product/zyxel/ex3600-t0_firmware): 6 vulnerabilities, 5 versions - [Usg2200 Firmware](https://www.precursorintelligence.com/product/zyxel/usg2200_firmware): 6 vulnerabilities, 3 versions - [Pmg5617-T20b2 Firmware](https://www.precursorintelligence.com/product/zyxel/pmg5617-t20b2_firmware): 6 vulnerabilities, 1 version - [Pmg5318-B20a Firmware](https://www.precursorintelligence.com/product/zyxel/pmg5318-b20a_firmware): 5 vulnerabilities, 1 version - [Nas540 Firmware](https://www.precursorintelligence.com/product/zyxel/nas540_firmware): 5 vulnerabilities, 5 versions - [Usg200 Firmware](https://www.precursorintelligence.com/product/zyxel/usg200_firmware): 5 vulnerabilities, 2 versions - [P660hn-T1a V2 Firmware](https://www.precursorintelligence.com/product/zyxel/p660hn-t1a_v2_firmware): 5 vulnerabilities, 2 versions - [Lte5398-M904 Firmware](https://www.precursorintelligence.com/product/zyxel/lte5398-m904_firmware): 5 vulnerabilities, 2 versions - [Lte5388-M804 Firmware](https://www.precursorintelligence.com/product/zyxel/lte5388-m804_firmware): 5 vulnerabilities, 2 versions - [P660hn-T1a V1 Firmware](https://www.precursorintelligence.com/product/zyxel/p660hn-t1a_v1_firmware): 5 vulnerabilities, 2 versions ## Questions ### How many vulnerabilities does Zyxel have? Our catalogue lists 306 published vulnerabilities across 878 products and 1,329 versions from Zyxel. The most recent Zyxel flaw added to the known-exploited list is CVE-2024-40891, on 11 February 2025. ### Which Zyxel vulnerabilities are being exploited? 12 Zyxel vulnerabilities are on the list of flaws known to be exploited. The most recently added are CVE-2024-40891, CVE-2024-40890 and CVE-2024-11667. The full list is on this page. ### Which Zyxel product has the most vulnerabilities? Usg Flex 500, with 54 published vulnerabilities. Its own page lists the ones known to be exploited. ### How do I get alerts for new Zyxel vulnerabilities? Create a Precursor Intelligence account and track the Zyxel products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook. ## Running Zyxel? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact