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Zyxel AX7501-B1 Syslog LogServer Field Passes Input Unsanitized to the Shell, Allowing Authenticated Administrators to Execute OS Commands

Last refreshed2026-09-29

Status: NEW  |  Advisory ID: CVE-2026-6952

Key Details

CVECVE-2026-6952
CVSS Score / Version7.2 (High) / CVSS v3.1
Updated2026-07-23
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is high; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Classified asCWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'))

What to Know

A post-authentication command injection vulnerability in the "LogServer" field of the syslog component in Zyxel AX7501-B1 firmware versions through 5.17(ABPC.7.2)C0 could allow an authenticated attacker with administrator privileges to execute OS commands on an affected device.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-6952
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-6952