CVE-2026-86133
HIGH
8,2
Source: 5d1c2695-1a31-4499-88ae-e847036fd7e3
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
An integer underflow vulnerability in the WatchGuard Fireware OS IKE daemon (iked) allows a remote attacker who has completed the initial IKEv2 handshake to crash the iked process by sending a specially crafted encrypted IKEv2 message, resulting in a denial of service.
191
Integer Underflow (Wrap or Wraparound)
DraftCommon Consequences
Security Scopes Affected:
Availability
Integrity
Confidentiality
Access Control
Potential Impacts:
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Dos: Instability
Modify Memory
Execute Unauthorized Code Or Commands
Bypass Protection Mechanism
Applicable Platforms
Languages:
C, C++, Java, C#
1284
Improper Validation of Specified Quantity in Input
IncompleteCommon Consequences
Security Scopes Affected:
Other
Integrity
Availability
Potential Impacts:
Varies By Context
Dos: Resource Consumption (Cpu)
Modify Memory
Read Memory
Applicable Platforms
All platforms may be affected
https://psirt.watchguard.com/CVE-2026-86133