CVE-2026-81433

UNKNOWN

Description

A stack-based buffer overflow vulnerability in WatchGuard Fireware OS's DHCP fingerprinting daemon (fingerd) allows an unauthenticated attacker with adjacent network access to execute arbitrary code or crash the process by sending a specially crafted DHCP packet.

Timeline

Published:September 30th, 2026 12:16 AM

Last modified:October 1st, 2026 4:18 AM

CVSS Scoring

No CVSS v3 score available

Weaknesses (CWE)

CWE-120 CWE-121 CWE-787

References & Reports

Advisories, patches, and third-party reports

https://psirt.watchguard.com/CVE-2026-81433

Source: NIST NVD · Data may lag official sources by up to one minute