# CVE-2022-42475

## Summary

- **CVE ID:** CVE-2022-42475
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C)
- **CWE:** CWE-197
- **Published:** Jan 2, 2023
- **Last Modified:** Mar 13, 2026

## Description

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.

## Affected Products

- Fortinet — FortiProxy (7.2.0)
- Fortinet — FortiProxy (7.0.0)
- Fortinet — FortiProxy (2.0.0)
- Fortinet — FortiProxy (1.2.0)
- Fortinet — FortiProxy (1.1.0)
- Fortinet — FortiProxy (1.0.0)
- Fortinet — FortiOS (7.2.0)
- Fortinet — FortiOS (7.0.0)
- Fortinet — FortiOS (6.4.0)
- Fortinet — FortiOS (6.2.0)
- Fortinet — FortiOS (6.0.0)
- Fortinet — FortiOS (5.6.0)
- Fortinet — FortiOS (5.4.0)
- Fortinet — FortiOS (5.2.0)
- Fortinet — FortiOS (5.0.0)

## References

- [CNA](https://fortiguard.com/psirt/FG-IR-22-398)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42475)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 93.98%
- **EPSS Percentile:** 99.9

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** Dec 13, 2022
- **Due Date:** Jan 3, 2023

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._