CVE-2026-81433

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-120CWE-121CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Peaked 1d ago at 1 mentions (2026-09-29); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-09-29: 1Mentions · 2026-09-30: 109-2909-30
Referenced assets2 URLs
Full discourse2 posts
  • ExploitGrid@exploitgrid

    🚨 CVE-2026-81433: WatchGuard Fireware OS A pre-auth stack buffer overflow in the fingerd DHCP fingerprinting daemon can allow unauthenticated attackers with adjacent network access to execute arbitrary code. CVSS 8.7 | RCE | ExploitGrid: 34.8 🔎 https://exploitgrid.net/vulnerabilities/CVE-2026-81433

    0101156
    222 followersView on X
  • CVE@CVEnew

    CVE-2026-81433 A stack-based buffer overflow vulnerability in WatchGuard Fireware OS's DHCP fingerprinting daemon (fingerd) allows an unauthenticated attacker with adjacent network … https://www.cve.org/CVERecord?id=CVE-2026-81433

    00110555
    58.1K followersView on X

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