An integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked) allows a remote, unauthenticated attacker to crash the process… (CVE-2026-86132)
CVE-2026-86132 is an integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked). A remote, unauthenticated attacker can cause the iked process to crash by sending a specially crafted encrypted IKEv2 message negotiated with an AES-GCM cipher suite. This vulnerability affects multiple versions of Fireware OS prior to their respective fixed releases. The CVSS 4.0 score is 8.2, indicating high severity.
AI Analysis
Technical Summary
CVE-2026-86132 is an integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked). An attacker without authentication can remotely trigger a crash of the iked process by sending a maliciously crafted encrypted IKEv2 message using an AES-GCM cipher suite. The vulnerability is classified under CWE-191 (Integer Underflow). There is no indication of active exploitation in the wild, and no patch or remediation information is currently available.
Potential Impact
The primary impact is a denial of service condition caused by crashing the iked process remotely without authentication. There is no evidence of privilege escalation, data disclosure, or code execution from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of the IKEv2 service to trusted networks to reduce risk.
An integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked) allows a remote, unauthenticated attacker to crash the process… (CVE-2026-86132)
Description
CVE-2026-86132 is an integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked). A remote, unauthenticated attacker can cause the iked process to crash by sending a specially crafted encrypted IKEv2 message negotiated with an AES-GCM cipher suite. This vulnerability affects multiple versions of Fireware OS prior to their respective fixed releases. The CVSS 4.0 score is 8.2, indicating high severity.
CVSS v4.0
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86132 is an integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked). An attacker without authentication can remotely trigger a crash of the iked process by sending a maliciously crafted encrypted IKEv2 message using an AES-GCM cipher suite. The vulnerability is classified under CWE-191 (Integer Underflow). There is no indication of active exploitation in the wild, and no patch or remediation information is currently available.
Potential Impact
The primary impact is a denial of service condition caused by crashing the iked process remotely without authentication. There is no evidence of privilege escalation, data disclosure, or code execution from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of the IKEv2 service to trusted networks to reduce risk.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-cqp8-x8vw-vcr3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86132"]
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abc5d3f680226ef6899ba43
Added to database: 09/30/2026, 00:52:15 UTC
Last enriched: 09/30/2026, 01:21:16 UTC
Last updated: 09/30/2026, 01:27:04 UTC
Views: 3
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