CVE-2026-39811

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 55/100
Published: 2026-04-14 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

A integer overflow or wraparound vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow attacker to denial of service via <insert attack vector here>

Weakness Classification (1)

Affected Software (5)

VendorProductVersion
fortinet fortiweb 7.0.0 – 7.0.13
fortinet fortiweb 7.2.0 – 7.2.13
fortinet fortiweb 7.4.0 – 7.4.12
fortinet fortiweb 7.6.0 – 7.6.7
fortinet fortiweb 8.0.0 – 8.0.4

References & Advisories (1)

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

4.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.37%
Raw Score 0.003660
Percentile 30.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00366
2026-10-28
0.00366

Intelligence Sources

nvd ref →