PatchTheCVECVE-2026-13371: An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by
CVE-2026-13371 is a medium-severity flaw (CVSS 4.9) affecting fireware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.6% (top 52%) |
| CISA exploited list | No |
| Weakness | CWE-502 |
| Published | 2026-07-03 |
| Last modified | 2026-10-25 |
Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-13371?
fireware: upgrade to 12.5.19, 12.12.1, 2026.2.1. Exact commands for each OS are on this page.
Is CVE-2026-13371 being exploited?
CVE-2026-13371 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-13371 affect?
CVE-2026-13371 affects fireware. Severity is medium (CVSS 4.9). An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.
How urgent is CVE-2026-13371?
Priority 29/100. No elevated risk signals yet.
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