All vulnerabilities
CVE-2023-27997

Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability

Fortinet FortiOS and FortiProxy SSL-VPNNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.2Critical
ExploitationExploited in the wildAdded to KEV 13 Jun 2023. Known ransomware useCISA KEV
Exploit odds (EPSS)85.7%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline4 Jul 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 13 Jun 2023, 08:41 UTCPublishedCVE List
  2. 13 Jun 2023Added to CISA KEVCISA KEV

Description

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

Text from CVE List

Affected versions 22

  • FortiOS-6K7Kaffected: 7.0.10CVE List
  • FortiOS-6K7Kaffected: 7.0.5CVE List
  • FortiOS-6K7Kaffected: 6.4.12CVE List
  • FortiOS-6K7Kaffected: 6.4.10CVE List
  • FortiOS-6K7Kaffected: 6.4.8CVE List
  • FortiOS-6K7Kaffected: 6.4.6CVE List
  • FortiOS-6K7Kaffected: 6.4.2CVE List
  • FortiOS-6K7Kaffected: 6.2.9 through 6.2.13CVE List
  • FortiOS-6K7Kaffected: 6.2.6 through 6.2.7CVE List
  • FortiOS-6K7Kaffected: 6.2.4CVE List
  • FortiOS-6K7Kaffected: 6.0.12 through 6.0.16CVE List
  • FortiOS-6K7Kaffected: 6.0.10CVE List
  • FortiProxyaffected: 7.2.0 through 7.2.3CVE List
  • FortiProxyaffected: 7.0.0 through 7.0.9CVE List
  • FortiProxyaffected: 2.0.0 through 2.0.12CVE List
  • FortiProxyaffected: 1.2.0 through 1.2.13CVE List
  • FortiProxyaffected: 1.1.0 through 1.1.6CVE List
  • FortiOSaffected: 7.2.0 through 7.2.4CVE List
  • FortiOSaffected: 7.0.0 through 7.0.11CVE List
  • FortiOSaffected: 6.4.0 through 6.4.12CVE List
  • FortiOSaffected: 6.2.0 through 6.2.13CVE List
  • FortiOSaffected: 6.0.0 through 6.0.16CVE List

References 4