CVE-2022-42475
Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run FortiGate / FortiOS, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by Jan 3, 2023.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
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.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Fixed in | Source |
|---|---|---|---|---|
| FortiGate / FortiOS | Fortinet | >= 5.0.0, <= 5.0.14; >= 5.2.0, <= 5.2.15; >= 5.4.0, <= 5.4.13; >= 5.6.0, <= 5.6.14; >= 6.0.0, < 6.0.16; >= 6.2.0, < 6.2.12 | 6.0.16; 6.2.12; 6.4.11; 7.0.9; 7.2.3; 6.0.15 | KEV |
Sources: KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2022-42475 scored CVSS 9.8: Fortinet FortiOS, Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability
CISA lists this as exploited in the wild and known to be used in ransomware campaigns. Unpatched FortiOS systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
We have not published a story about this vulnerability yet.