Vulnerability · Published Feb 24, 2026 · Assigned by Zyxel
CVE-2025-13942
Critical 9.8
In plain English
A critical-severity OS command injection in EX3510-B0 firmware from Zyxel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.2%top 32.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | EX3510-B0 firmware | <= 5.17(ABUP.15.1)C0 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H