CVE-2026-40688

HIGH EPSS 92.9%

Published Apr 14, 20262mo ago · Modified Jun 17, 20261w ago

7.2 CVSS 3.1

High

Published Apr 14, 2026 2mo ago

Last Modified Jun 17, 2026 1w ago

Description

An out-of-bounds write vulnerability [CWE-787] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11 may allow a remote privileged attacker to execute arbitrary code or command via crafted HTTP requests.

CVSS Details

Base Score

7.2

Exploitability

1.2

Impact

5.9

Vector string

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required High

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

92.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 3

Vendor	Product	Version	Range
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 1

fortiguard.fortinet.com https://fortiguard.fortinet.com/psirt/FG-IR-26-127

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.