CVE-2026-81851

MEDIUM CVSS 4.0: 6.9 EPSS 0.25%
Updated Aug 28, 2026
Parameter Value
CVSS 6.9 (MEDIUM)
Type CWE-1284, CWE-122 (Heap-based Buffer Overflow)
Public PoC No

A heap-based buffer overflow vulnerability in Fireware OS's iked process allows an authenticated administrator to crash the IKE daemon (iked), resulting in a denial of service, by saving a specially crafted configuration.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0