CVE-2026-93864

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.

Score

CVSS 4.0 7.1 High

Status

Awaiting Analysis - 5d1c2695-1a31-4499-88ae-e847036fd7e3

Published

2026-10-27

Last modified

2026-10-28

Weaknesses

CWE-22, CWE-377, CWE-59, CWE-73

Affected products

• Fireware Os (Watchguard)

References

• https://psirt.watchguard.com/CVE-2026-93864