Dashboard / CVE-2026-3987

CVE-2026-3987

HIGH
MEDIUM Priority: 0.06 BB Relevance: 62/100
Published: 2026-04-01 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: X
AT: None
VC: High
VI: High
VA: High

Description

A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
watchguard fireware 2025.1 – 2026.2
watchguard fireware 12.6.1 – 12.12

References & Advisories (2)

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.6 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/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

EPSS — Exploitation Probability

0.69%
Raw Score 0.006910
Percentile 52.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00691
2026-10-28
0.00679

Intelligence Sources

nvd ref →

External Links