CVE-2022-42475

9.8 criticalKEVEPSS 99%

Critical (9.8) in Fortinet FortiOS. In CISA KEV since 2022-12-13, with known ransomware use. EPSS 99% chance of exploitation in the next 30 days.

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 99% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV: listed 2022-12-13, due 2023-01-03, known ransomware use
CWEs: CWE-787, CWE-197
Published: 2023-01-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fortinet:fortios
fortinet:fortiproxy

References

https://fortiguard.com/psirt/FG-IR-22-398
https://fortiguard.com/psirt/FG-IR-22-398
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42475

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