High 7.5Published Dec 4, 2025

CVE-2025-1547WatchGuard Firebox Authenticated Stack Overflow in Certificate Request Command

Updated under an hour ago (Oct 26, 2026, 3:30 PM ET)

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It affects WatchGuard Fireware OS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

A stack-based buffer overflow vulnerability [CWE-121] in WatchGuard Fireware OS's certificate request command could allow an authenticated privileged user to execute arbitrary code via specially crafted CLI commands.

CVSS: 7.5 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-121
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: WatchGuard
NVD analysis: Modified
Record last updated: Aug 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WatchGuard Fireware OS watchguard:fireware_os (from the name)	from 12.0 through 12.11.3	CNA record
watchguard fireware watchguard:fireware	from 12.0.0 before 12.11.3; from 12.5 before 12.5.13	NVD

References

References

https://psirt.watchguard.com/CVE-2025-1547	vendor-advisory
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00013	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.