Nas540 vulnerabilitiesAnd the versions its exploited flaws hit.
Nas540 is made by Zyxel. We track 5 published vulnerabilities listed under that exact name, across 0 versions. 2 of them are on the list of flaws known to be exploited, the newest added on 23 June 2023. Zyxel lists newer releases under their own names, such as Nas540 Firmware, so check those pages too.
The most recent Nas540 flaw added to the known-exploited list is CVE-2023-27992, on 23 June 2023. We keep watching the known-exploited list.
Is Nas540 listed under other names? Yes.
Zyxel also lists Nas540 under more specific names, such as Nas540 Firmware. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
Which versions of Nas540 do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
Which Nas540 vulnerabilities are being exploited?
2 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 9.8Zyxel Multiple NAS Devices Command Injection Vulnerability
Multiple Zyxel network-attached storage (NAS) devices contain a pre-authentication command injection vulnerability that could allow an unauthenticated attacker to execute commands remotely via a crafted HTTP request.
- 9.8Zyxel Multiple NAS Devices OS Command Injection Vulnerability
Multiple Zyxel network-attached storage (NAS) devices contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code.
Which Nas540 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. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute...
- 83%
The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to...
- 1.4%CVE-2023-27988High
The post-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.13)C0 could allow an authenticated attacker with administrator privileges to execute some operating...
- 1.2%CVE-2020-13364High
A backdoor in certain Zyxel products allows remote TELNET access via a CGI script.
- 1.0%CVE-2020-13365High
Certain Zyxel products have a locally accessible binary that allows a non-root user to generate a password for an undocumented user account that can be used for a TELNET session as root.
Running Nas540? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
- Tell us what you runPick your software from a list, or let us work it out from your website.
- We match it to every flawOver 400,000 published flaws, checked against your list.
- Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
- Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
Free plan, no card needed. Nothing to install.
1 flaw being exploited affects software Acme tracks
Multiple Zyxel network-attached storage (NAS) devices contain a pre-authentication command injection vulnerability that could allow an unauthenticated attacker to execute commands remotely via a crafted HTTP request.
- Matched to
- Nas540 on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 5 published vulnerabilities listed under the name Nas540, across 0 versions. The most recent Nas540 flaw added to the known-exploited list is CVE-2023-27992, on 23 June 2023.
2 are on the list of flaws known to be exploited. The most recently added are CVE-2023-27992 and CVE-2020-9054.
Zyxel also lists Nas540 under more specific names, such as Nas540 Firmware. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Create a Precursor Intelligence account and track Nas540. 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.