# Ios XE SD-WAN vulnerabilities > Ios XE SD-WAN is made by Cisco. We track 26 published vulnerabilities listed under that exact name, across 49 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 29 September 2025. Cisco lists newer releases under their own names, such as Ios XE SD-WAN 16.10.1 When Installed on 4000 Series Integrated Services, so check those pages too. Canonical page: https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan ## At a glance - **Made by:** [Cisco](https://www.precursorintelligence.com/vendors/cisco) - **Published vulnerabilities:** 26 - **Known to be exploited:** 1 (listed under the name Ios XE SD-WAN) - **Versions tracked:** 49 - **Most recently added to the known-exploited list:** [CVE-2025-20352](https://www.precursorintelligence.com/what-is/cve-2025-20352), 29 September 2025. We keep watching the list. ## Is Ios XE SD-WAN listed under other names? Cisco also lists Ios XE SD-WAN under more specific names, such as Ios XE SD-WAN 16.10.1 When Installed on 4000 Series Integrated Services and Ios XE SD-WAN 16.10.1 When Installed on ASR 1000 Series Aggregation Services. Flaws listed only under those names are counted on their own pages, not here. - [Ios XE SD-WAN 16.10.1 When Installed on 4000 Series Integrated Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.1_when_installed_on_4000_series_integrated_services): 1 published vulnerability - [Ios XE SD-WAN 16.10.1 When Installed on ASR 1000 Series Aggregation Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.1_when_installed_on_asr_1000_series_aggregation_services): 1 published vulnerability - [Ios XE SD-WAN 16.10.1 When Installed on Integrated Services Virtual](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.1_when_installed_on_integrated_services_virtual): 1 published vulnerability - [Ios XE SD-WAN 16.10.2 When Installed on 1000 Series Integrated Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.2_when_installed_on_1000_series_integrated_services): 1 published vulnerability - [Ios XE SD-WAN 16.10.2 When Installed on 4000 Series Integrated Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.2_when_installed_on_4000_series_integrated_services): 1 published vulnerability - [Ios XE SD-WAN 16.10.2 When Installed on ASR 1000 Series Aggregation Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.2_when_installed_on_asr_1000_series_aggregation_services): 1 published vulnerability - [Ios XE SD-WAN 16.10.2 When Installed on Integrated Services Virtual](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.2_when_installed_on_integrated_services_virtual): 1 published vulnerability - [Ios XE SD-WAN 16.10.3a When Installed on 1000 Series Integrated Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.3a_when_installed_on_1000_series_integrated_services): 1 published vulnerability - [Ios XE SD-WAN 16.10.3a When Installed on 4000 Series Integrated Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.3a_when_installed_on_4000_series_integrated_services): 1 published vulnerability - [Ios XE SD-WAN 16.10.3a When Installed on ASR 1000 Series Aggregation Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.3a_when_installed_on_asr_1000_series_aggregation_services): 1 published vulnerability - [Ios XE SD-WAN 16.10.3a When Installed on Cloud Services Router 1000v](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.3a_when_installed_on_cloud_services_router_1000v): 1 published vulnerability - [Ios XE SD-WAN 16.10.1 When Installed on 1000 Series Integrated Services](https://www.precursorintelligence.com/product/cisco/ios_xe_sd-wan_16.10.1_when_installed_on_1000_series_integrated_services): 1 published vulnerability ## Which versions of Ios XE SD-WAN do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. - [CVE-2025-20352](https://www.precursorintelligence.com/what-is/cve-2025-20352) (Cisco IOS and IOS XE Software SNMP Denial of Service and Remote Code Execution Vulnerability): 16.9.1, 16.9.2, 16.9.3, 16.9.4, 16.10.1, 16.10.2, 16.10.3a, 16.10.3b, 16.10.3, 16.10.4, 16.10.5, 16.10.6, 16.11.1a, 16.12.1b, 16.12.1d, 16.12.1e, 16.12.2r, 16.12.3, 16.12.4a, 16.12.4, 16.12.5 ## Which Ios XE SD-WAN vulnerabilities are being exploited? 1 flaw is on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2025-20352](https://www.precursorintelligence.com/what-is/cve-2025-20352): Cisco IOS and IOS XE Software SNMP Denial of Service and Remote Code Execution Vulnerability. High, CVSS 7.7, chance of use in 30 days 40%, known exploited since 29 September 2025. ## Which Ios XE SD-WAN 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-2025-20352](https://www.precursorintelligence.com/what-is/cve-2025-20352): 40%, High (CVSS 7.7), known exploited - [CVE-2020-3375](https://www.precursorintelligence.com/what-is/cve-2020-3375): 3.9%, Critical (CVSS 9.8) - [CVE-2021-34727](https://www.precursorintelligence.com/what-is/cve-2021-34727): 2.6%, Critical (CVSS 9.8) - [CVE-2021-1300](https://www.precursorintelligence.com/what-is/cve-2021-1300): 2.2%, Critical (CVSS 9.8) - [CVE-2021-1301](https://www.precursorintelligence.com/what-is/cve-2021-1301): 2.1%, Critical (CVSS 9.8) - [CVE-2021-1274](https://www.precursorintelligence.com/what-is/cve-2021-1274): 1.9%, High (CVSS 8.6) - [CVE-2021-1273](https://www.precursorintelligence.com/what-is/cve-2021-1273): 1.9%, High (CVSS 8.6) - [CVE-2021-1619](https://www.precursorintelligence.com/what-is/cve-2021-1619): 1.8%, Critical (CVSS 9.1) - [CVE-2021-1278](https://www.precursorintelligence.com/what-is/cve-2021-1278): 1.7%, High (CVSS 7.5) - [CVE-2021-1279](https://www.precursorintelligence.com/what-is/cve-2021-1279): 1.4%, High (CVSS 8.6) ## Questions ### How many vulnerabilities does Ios XE SD-WAN have? We track 26 published vulnerabilities listed under the name Ios XE SD-WAN, across 49 versions. The most recent Ios XE SD-WAN flaw added to the known-exploited list is CVE-2025-20352, on 29 September 2025. ### Which Ios XE SD-WAN vulnerabilities are being exploited? 1 is on the list of flaws known to be exploited. The most recently added is CVE-2025-20352. ### Why are newer Ios XE SD-WAN flaws missing from this page? Cisco also lists Ios XE SD-WAN under more specific names, such as Ios XE SD-WAN 16.10.1 When Installed on 4000 Series Integrated Services and Ios XE SD-WAN 16.10.1 When Installed on ASR 1000 Series Aggregation Services. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list. ### Which versions of Ios XE SD-WAN do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2025-20352, affects 16.9.1, 16.9.2, 16.9.3, 16.9.4 and more. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Ios XE SD-WAN? Create a Precursor Intelligence account and track Ios XE SD-WAN. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running Ios XE SD-WAN? 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