Dashboard / CVE-2026-126239

CVE-2026-126239

HIGH
MEDIUM Priority: 0.03 BB Relevance: 75/100
Published: 2026-11-11 Modified: 2026-11-12 First seen: 2026-11-11 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

A stack-based buffer overflow vulnerability in Fortinet FortiAuthenticator 8.0.0 through 8.0.3, FortiAuthenticator 6.6.0 through 6.6.10 may allow an unauthenticated attacker to crash the FSSO subsystem via crafted http requests

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
Fortinet FortiAuthenticator 8.0.0
Fortinet FortiAuthenticator 6.6.0
Fortinet FortiAuthenticator 8.0.0
Fortinet FortiAuthenticator 6.6.0

References & Advisories (1)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.41%
Raw Score 0.004150
Percentile 36.4%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00415
2026-11-12
0.00415

Intelligence Sources

mitre ref →
nvd ref →

External Links