9.2
Critical
Exploited
· ransomware
CVE-2023-27997 Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Known to be used
Weakness
CWE-122
Description
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| FortiOS-6K7K 7.0 | 7.0.5 → 7.0.10 | No fix stated |
| FortiOS-6K7K 6.4 | 6.4.2 → 6.4.12 | No fix stated |
| FortiOS-6K7K 6.2 | 6.2.4 → 6.2.13 | No fix stated |
| FortiOS-6K7K 6.0 | 6.0.10 → 6.0.16 | No fix stated |
| FortiProxy 7.2 | 7.2.0 → 7.2.3 | No fix stated |
| FortiProxy 7.0 | 7.0.0 → 7.0.9 | No fix stated |
| FortiProxy 2.0 | 2.0.0 → 2.0.12 | No fix stated |
| FortiProxy 1.2 | 1.2.0 → 1.2.13 | No fix stated |
| FortiProxy 1.1 | 1.1.0 → 1.1.6 | No fix stated |
References
- fortiguard.com fortiguard.com
Timeline
- Published
- Added to the KEV catalogue
- Last modified