High severity7.2NVD Advisory· Published Apr 1, 2026· Updated Aug 14, 2026
CVE-2026-3987
CVE-2026-3987
Description
A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*range: >=2025.1,<2026.2
- (no CPE)
Patches
Vulnerability mechanics
References
2- www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00009nvdVendor Advisory
- psirt.watchguard.com/CVE-2026-3987nvdBroken Link
News mentions
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