CVE-2025-13942 Command injection in EX3510-B0 firmware
Remote attackers can execute OS commands on Zyxel EX3510-B0 devices via crafted UPnP SOAP requests, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-13942?
CVE-2025-13942 is a critical command injection vulnerability in Zyxel EX3510-B0 firmware, published on 24 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A command injection vulnerability in the UPnP function of the Zyxel EX3510-B0 firmware versions through 5.17(ABUP.15.1)C0 could allow a remote attacker to execute operating system (OS) commands on an affected device by sending specially crafted UPnP SOAP requests.
Weakness: CWE-78
Which versions are affected by CVE-2025-13942?
It affects 18 products.
Products include Zyxel Dx4510-B0 Firmware, Zyxel Dx4510-B1 Firmware, Zyxel Ee6510-10 Firmware, Zyxel Emg6726-B10a Firmware, Zyxel Ex2210-T0 Firmware, Zyxel Ex3510-B0 Firmware and 12 more.
How do I fix CVE-2025-13942?
No fix has been published for CVE-2025-13942 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-13942 being exploited?
There is no known exploitation of CVE-2025-13942 in the wild and no public exploit code.
Sources
Also known as GHSA-934v-v4wh-rf2c.