OCTOBER 8, 2026
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Case File

CVE-2026-81433

HIGH · CVSS 8.7 EPSS 0.20%

Source: NVD + CISA KEV + EPSS · Published 2026-09-30 · Last synced 2026-10-08

CyberRota Analysis

AI-Generated

A stack-based buffer overflow vulnerability in the DHCP fingerprinting daemon of WatchGuard Fireware OS allows unauthenticated attackers with adjacent network access to execute arbitrary code or crash the service by sending specially crafted DHCP packets. Organizations using affected versions of Fireware OS should prioritize patching this vulnerability to mitigate the risk of unauthorized access and potential service disruption. Immediate action is recommended for network administrators and security teams managing WatchGuard devices.

CVE
CVE-2026-81433
Severity
HIGH
CVSS
8.7
EPSS
0.20%

Original NVD 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.