Is CVE-2023-42790 being actively exploited?

CVE-2023-42790 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2023-42790?

CVE-2023-42790 has a CVSS 3.1 base score of 8.1 (HIGH).

CVE-2023-42790

HIGH · CVSS 8.1EPSS 1.1%EU EUVD

A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0.0 through 7.0.12, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiProxy 7.4.0, FortiProxy 7.2.0 through 7.2.6, FortiProxy 7.0.0 through 7.0.12, FortiProxy 2.0.0 through 2.0.13, FortiSASE 23.2.b allows attacker to execute unauthorized code or commands via specially crafted HTTP requests.

Key facts

CVSS score: 8.1 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-121
EPSS score: 1.1% (65th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2023-47220)
Published: March 12, 2024
NVD last modified: July 8, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-47220 in the EU Vulnerability Database. Last updated in EUVD on July 8, 2026.

View on the EU Vulnerability Database

Affected products

fortinet / fortios
fortinet / fortiproxy
fortinet / fortiproxy

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Fortinet, Inc. FortiOS 7.0.7 - Fortinet, Inc. - Common Criteria NSCIB-CC-0590233-CR - active
FortiGate/FortiOS Version 6.2.7 - Fortinet, Inc. - Common Criteria 559-LSS - archived

References

https://fortiguard.com/psirt/FG-IR-23-328

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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