FortiWeb 78 Stack Overflows: Remote Code Execution via HTTP (Pre-8.0.3)
CVE-2026-24640 Published on March 10, 2026
A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0.2 through 7.0.12 may allow a remote authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests.
Vulnerability Analysis
CVE-2026-24640 is exploitable with network access, and requires user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-24640 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2026-24640
Want to know whenever a new CVE is published for Fortinet FortiWeb? stack.watch will email you.
Affected Versions
Fortinet FortiWeb:- Version 8.0.0, <= 8.0.2 is affected.
- Version 7.6.0, <= 7.6.6 is affected.
- Version 7.4.0, <= 7.4.12 is affected.
- Version 7.2.0, <= 7.2.12 is affected.
- Version 7.0.2, <= 7.0.12 is affected.