What is CVE-2023-42790?

CVE-2023-42790 is a high-severity vulnerability in Fortinet Fortios, classified under Stack-based Buffer Overflow. CVSS score: 7.7/10. Published 2024-03-12.

How severe is CVE-2023-42790?

High severity. CVSS v3 base score is 7.7 out of 10.

Is CVE-2023-42790 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Fortinet Fortios

CVE-2023-42790

A stack-based buffer overflow in Fortinet FortiOS 7.4.0 through 7.4.1, 7.2.0 through 7.2.5, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, FortiProxy 7.4.0, 7.2.0 through 7.2.6, 7.0.0 through 7.0.12, 2.0.0 through 2.0.13…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (32.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C.

Affected products

Fortinet Fortios — versions 7.4.0, 7.2.0, 7.0.0
Fortinet Fortiproxy — versions 7.4.0, 7.2.0, 7.0.0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2023-42790?: CVE-2023-42790 is a high-severity vulnerability in Fortinet Fortios, classified under Stack-based Buffer Overflow. CVSS score: 7.7/10. Published 2024-03-12.
How severe is CVE-2023-42790?: High severity. CVSS v3 base score is 7.7 out of 10.
Is CVE-2023-42790 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.