8.7

CVE-2026-13084: watchguard fireware NULL Pointer Dereference

CVSS: 8.7v4.0HighAnalyzed
Published 02-07-2026Last modified 27-08-2026
Open JSON

Vulnerability summary

CVE-2026-13084 is a high (CVSS 8.7) NULL Pointer Dereference vulnerability in watchguard fireware. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.3% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v4.0 (CVE.org)
EPSS score
0.61%
0%100%
Low · +0.11 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-07-2026
    PublishedVulnerability first disclosed.
  2. 27-08-2026
    Last modifiedVulnerability information updated.

Description

A null pointer dereference vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to create a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer. This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.61%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

+0.11 pp

From 0.50% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.61%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Watchguard2 products
  • fireware≥ 12.5, < 12.5.19 | ≥ 11.0.0, < 11.12.4 | 11.12.4 | 11.12.4:u1 | ≥ 12.0, < 12.12.1 | ≥ 2025.1, < 2026.2.1
  • fireware os≥ 2025.1, < 2026.2.1 | ≥ 12.0, < 12.12.1 | ≥ 11.10.2 (No fix recorded) | ≥ 12.0, < 12.11.9 | ≥ 12.0, < 12.5.19

1 vendor · 2 products

References

2 links