Dashboard / CVE-2026-93862

CVE-2026-93862

HIGH
MEDIUM Priority: 0.01 BB Relevance: 59/100
Published: 2026-10-27 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: None
AT: None
VC: Low
VI: Low
VA: High

Description

An out-of-bounds read vulnerability in the FireCluster Sync processing allows an attacker positioned on the cluster interconnect, such as a compromised cluster peer or an on-path network attacker, to repeatedly crash the firewall's cluster synchronization process by sending specially crafted network traffic, resulting in a sustained denial of service.

Weakness Classification (4)

Affected Software (6)

VendorProductVersion
WatchGuard Fireware OS 2025.1 < 2026.4
WatchGuard Fireware OS 12.0 < 12.12.4
WatchGuard Fireware OS 12.0 < 12.5.22
WatchGuard Fireware OS 2025.1 < 2026.4
WatchGuard Fireware OS 12.0 < 12.12.4
WatchGuard Fireware OS 12.0 < 12.5.22

References & Advisories (1)

Bug Bounty Relevance

59 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.2 / 10.0 v4.0
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.17%
Raw Score 0.001650
Percentile 5.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00165
2026-10-28
0.00165

Intelligence Sources

mitre ref →
nvd ref →

External Links