7.5

CVE-2026-86132

Medienbericht

Fireware OS Pre-Authentication Integer Underflow in iked Allows Denial of Service

An integer underflow vulnerability in the WatchGuard Fireware OS IKEv2 daemon (iked) allows a remote, unauthenticated attacker to crash the process by sending a specially crafted encrypted IKEv2 message negotiated with an AES-GCM cipher suite.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Watchguard ≫ Fireware Version >= 12.0 < 12.5.21
Watchguard ≫ Fireware Version >= 12.12 < 12.12.3
Watchguard ≫ Fireware Version >= 2025.0 < 2026.2.3
Watchguard ≫ Fireware Version >= 2026.3 < 2026.3.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.36% 0.269
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5d1c2695-1a31-4499-88ae-e847036fd7e3 8.2 0 0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-191 Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

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Media Report
01.10.2026 09:56
https://psirt.watchguard.com/CVE-2026-86132
Patch
Vendor Advisory