# CVE-2023-27997

> 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.

- **CVSS:** 9.8 (CRITICAL)
- **EPSS:** 91.0%
- **CISA KEV:** yes (known ransomware use)
- **CWE:** CWE-122, CWE-787

Canonical: https://intel.threadlinqs.com/cve/CVE-2023-27997
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp