CVE-2026-40688

published 2026-04-14

CVE-2026-40688: 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…

Priority P3 57 high 7.2 CVSS 3.1

AV N AC L PR H UI N S U C H I H A H

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.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
fortinet	fortinet	—	—
fortinet	fortiweb	—	—
fortinet	fortiweb	>= 7.4.0 < 7.4.12	7.4.12
fortinet	fortiweb	7.4.0 – 7.4.11	—
fortinet	fortiweb	>= 7.6.0 < 7.6.7	7.6.7
fortinet	fortiweb	7.6.0 – 7.6.6	—
fortinet	fortiweb	>= 8.0.0 < 8.0.4	8.0.4
fortinet	fortiweb	8.0.0 – 8.0.3	—

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CWE-787