CVE-2026-93857

A stack-based buffer overflow vulnerability in Fireware OS's SIP proxy allows a remote, unauthenticated attacker to execute arbitrary code by sending a specially crafted request through a policy that uses the SIP proxy.

Score

CVSS 4.0 9.2 Critical

Status

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

Published

2026-10-27

Last modified

2026-10-28

Weaknesses

CWE-120, CWE-121, CWE-787

Affected products

• Fireware Os (Watchguard)

References

• https://psirt.watchguard.com/CVE-2026-93857