CVE-2023-27997
KEV RANSOMWARECRITICAL 9.8EPSS 85.7%
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 v3.1
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 85.69% chance of exploitation in the next 30 days, 100th percentile
- CISA KEV
- added 2023-06-13, used in ransomware campaigns
- Published
- 2023-06-13
- Updated
- 2026-07-31
Proof-of-concept exploits (8)
- Cyb3rEnthusiast/CVE-2023-279970★ · 2023-09-09
- delsploit/CVE-2023-279979★ · 2023-10-12
- h4x0r-dz/CVE-2024-21762150★ · 2024-03-16
- lexfo/xortigate-cve-2023-2799762★ · 2023-10-12
- node011/CVE-2023-27997-POC0★ · 2024-11-14
- onurkerembozkurt/fgt-cve-2023-27997-exploit0★ · 2025-06-21
- puckiestyle/cve-2023-279970★ · 2023-06-23
- rio128128/CVE-2023-27997-POC27★ · 2023-06-16