Description
A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process iallows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.
Published: 2026-08-27
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

Vendor Solution

Fireware OS 2026.2.2, Fireware OS 12.12.2, Fireware OS 12.5.20

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 28 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process iallows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.
Title Fireware OS Stack-Based Buffer Overflow in iked Allows Unauthenticated Denial of Service
First Time appeared Watchguard
Watchguard fireware Os
Weaknesses CWE-121
CWE-1284
CWE-787
CPEs cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*
Vendors & Products Watchguard
Watchguard fireware Os
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Watchguard Fireware Os
cve-icon MITRE

Status: PUBLISHED

Assigner: WatchGuard

Published:

Updated: 2026-08-28T16:53:48.247Z

Reserved: 2026-08-21T21:46:45.307Z

Link: CVE-2026-78010

cve-icon Vulnrichment

Updated: 2026-08-28T16:53:37.211Z

cve-icon NVD

Status : Deferred

Published: 2026-08-28T02:16:22.417

Modified: 2026-08-28T20:19:56.773

Link: CVE-2026-78010

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T07:45:04Z

Weaknesses
  • CWE-121

    Stack-based Buffer Overflow

  • CWE-1284

    Improper Validation of Specified Quantity in Input

  • CWE-787

    Out-of-bounds Write