CVE-2026-24640
Stack-Based Buffer Overflow in Fortinet FortiWeb Enables RCE
Publication date: 2026-03-10
Last updated on: 2026-03-12
Assigner: Fortinet, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| fortinet | fortiweb | From 8.0.0 (inc) to 8.0.3 (exc) |
| fortinet | fortiweb | From 7.0.2 (inc) to 7.0.12 (inc) |
| fortinet | fortiweb | From 7.2.0 (inc) to 7.6.7 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
| CWE-121 | 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). |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
I don't know
Can you explain this vulnerability to me?
This vulnerability is a stack-based buffer overflow found in multiple versions of Fortinet FortiWeb (versions 7.0.2 through 8.0.2). It allows a remote authenticated attacker, who can bypass stack protection and Address Space Layout Randomization (ASLR), to execute arbitrary code or commands by sending specially crafted HTTP requests.
How can this vulnerability impact me? :
If exploited, this vulnerability can allow an attacker with valid authentication to execute arbitrary code or commands on the affected FortiWeb device. This can lead to full compromise of the system, potentially resulting in unauthorized access, data manipulation, service disruption, or further attacks within the network.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
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