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CVE-2026-93864

A link following vulnerability in WatchGuard Fireware OS’s firewall daemon allows a local attacker…

Risk score
43/100
CVSS
7.1 v4.0
Published
27 Oct 2026

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What to know

What it is
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. Wr…
Affected
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 7.1 high

References

Original description

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.

Last activity 27 Oct 2026. Patch Forecast updates every hour.