CVE-2026-121526

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 62/100
Published: 2026-11-11 Modified: 2026-11-12 First seen: 2026-11-11 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

A url redirection to untrusted site ('open redirect') 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 perform an open redirect attack via crafted HTTP requests.

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.27%
Raw Score 0.002700
Percentile 19.4%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00270
2026-11-12
0.00270

Intelligence Sources

mitre ref →
nvd ref →