CVE-2026-81433
A stack-based buffer overflow vulnerability in WatchGuard Fireware OS's DHCP fingerprinting daemon…
- Risk score
- 54/100
- CVSS
- 8.7 v4.0
- Exploit chance (30 days)
- 0.2%
- Published
- 30 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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.
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.7 high
References
Original 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.
Last activity 30 Sep 2026. Patch Forecast updates every hour.