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CVE-2021-42756
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2023-02-16T19:15:11.500 · Last modified 2026-06-17T04:10:04.863

Summary

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.

Affected products

fortinet — fortiweb

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.