Deserialization of Untrusted Data in Fireware OS - CVE-2026-13371
Published: July 3, 2026
Vulnerability identifier: #VU136888
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-13371
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to unsafe deserialization in the put_data endpoint when handling attacker-supplied input. A remote privileged user can send malformed or crafted data to cause a denial of service.
Affected software
Fireware OS
How to mitigate CVE-2026-13371
Install security update from vendor's website.
Fireware OS - addressed in versions 12.12.1, 2026.2.1