CVEvulnerability

CVE-2026-86132

8.2 HIGH Published 2026-09-30 Modified 2026-10-06 Official page ↗
Status
Analyzed
Published
2026-09-30
Last modified
2026-10-06
Assigner
5d1c2695-1a31-4499-88ae-e847036fd7e3
CVSS 4.0 (5d1c2695-1a31-4499-88ae-e847036fd7e3)
8.2 HIGH — 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
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-191

Description

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.

Affected configurations

• watchguard fireware (>= 12.0 < 12.5.21) • watchguard fireware (>= 12.12 < 12.12.3) • watchguard fireware (>= 2025.0 < 2026.2.3) • watchguard fireware (>= 2026.3 < 2026.3.2)

Related

Weakness · CWE (1)

  • CWE-191 Integer Underflow (Wrap or Wraparound) weakness

References