CVE-2026-93864
Fireware OS Link Following in firewalld Allows Local Arbitrary File Overwrite as Root
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
A link following vulnerability in WatchGuard Fireware OS’s firewall daemon allows a local attacker with code execution as a low-privileged system process to overwrite arbitrary files with root privileges, and to tamper with firewall IP set data, by planting a crafted file system object and triggering a list update. Written content is partially constrained.
| CWE | CWE-22 CWE-377 CWE-59 CWE-73 |
| Vendor | watchguard |
| Product | fireware os |
| Published | Oct 27, 2026 |
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Affected Versions
WatchGuard / Fireware OS
2025.1 < 2026.4 12.0 < 12.12.4
WatchGuard / Fireware OS
12.0 < 12.5.22
References
Credits
WatchGuard AI Security Research