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Vulnerability record · CVE-2025-12196 · published 4 December 2025

CVE-2025-12196: Watchguard fireware out-of-bounds write vulnerability

Watchguard · Fireware

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS's CLI could allow an authenticated privileged user to execute arbitrary code via a specially crafted CLI command.

8.6 CVSS 4.0 High EPSS 0.62% · top 52.3% CWE-787 · Out-of-bounds write
8.6CVSS 4.0 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
10 Aug 2026Last modified by NVD

Description

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS's CLI could allow an authenticated privileged user to execute arbitrary code via a specially crafted CLI command.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://psirt.watchguard.com/CVE-2025-12196
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00020 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-12196), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.