CVE-2026-93864High· 7.1▾ TwilightA 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 s…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 28.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.1%
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.
fireware_os >= 2025.1 < 2026.4fireware_os >= 12.0 < 12.12.4fireware_os >= 12.0 < 12.5.22Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22
Connected by shared product, vendor, weakness, or advisory.
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