Is CVE-2022-42475 actively exploited?

Yes. CVE-2022-42475 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2022-42475 be exploited remotely?

The attack vector of CVE-2022-42475 has not been classified yet.

What is the CVSS score of CVE-2022-42475?

CVE-2022-42475 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2022-42475

HIGHCISA KEVIN THE WILD

CVE-2022-42475

Published: December 13, 2022

EPSS:93.98%probability of exploitation in 30 daysPercentile:99.9th

Official Description

Multiple versions of Fortinet FortiOS SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute arbitrary code or commands via specifically crafted requests.

NVD Source

CISA KEV Advisory

Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability

Added to KEV: 2022-12-13Federal patch deadline: 2023-01-03⚠ USED IN RANSOMWARE CAMPAIGNS

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability in Fortinet FortiOS SSL-VPN involves a heap-based buffer overflow, which allows an unauthenticated, remote attacker to execute arbitrary code or commands by sending specially crafted requests. The high EPSS score of 0.93984 indicates a very high likelihood of exploitation, making this a critical vulnerability. Its inclusion in CISA's KEV catalog confirms active exploitation.

This vulnerability has been actively exploited in the wild, as confirmed by its exploit status and inclusion in CISA's KEV catalog. The flaw is remotely exploitable by unauthenticated attackers.

Recommended Action

Apply the latest security updates to Fortinet FortiOS SSL-VPN to patch the heap-based buffer overflow. Implement network segmentation and strong access controls for VPN services.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-42475 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2022-42475 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.