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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. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.

PUBLISHED Reserved 2026-06-23 | Published 2026-07-02 | Updated 2026-07-07 | Assigner WatchGuard




HIGH: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-787 Out-of-bounds Write

Product status

Default status
unaffected

11.0 (semver)
affected

12.0 (semver)
affected

12.5 (semver)
affected

2025.1 (semver)
affected

Credits

Nicholas Zubrisky (@NZubrisky) of TrendAI Research finder

References

www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00030 vendor-advisory

cve.org (CVE-2026-13053)

nvd.nist.gov (CVE-2026-13053)

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