CVE-2021-42756
Critical
Description
Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Fortinet Fortiweb
PublishedFeb 16, 2023
First seenFeb 16, 2023
Weakness typeCWE-121CWE-121
How to fix
Update
- fortinet fortiweb6.0.8, 6.1.3, 6.2.7, 6.3.17 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fortinet fortiweb | 5.6.0 ≤ v < 6.0.8, 6.1.0 ≤ v < 6.1.3, 6.2.0 ≤ v < 6.2.7, 6.3.0 ≤ v < 6.3.17, 6.4.0 ≤ v ≤ 6.4.2 | 6.0.8, 6.1.3, 6.2.7, 6.3.17 |
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