Stack-based buffer overflow in FortiWeb - CVE-2026-30897
Published: March 10, 2026
Vulnerability identifier: #VU123705
CSH Severity: Low
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-30897
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote privileged user to execute arbitrary code.
The vulnerability exists due to stack-based buffer overflow in API. A remote authenticated attacker who can bypass stack protection and aslr can execute arbitrary code or commands via crafted HTTP requests.
Affected software
FortiWeb
How to mitigate CVE-2026-30897
Install update from vendor's website.
FortiWeb - addressed in versions 7.4.12, 7.6.7, 8.0.4