VULNERABILITY INTELLIGENCE

CVE-2020-12819

CVSS score5.4 MEDIUM
EPSS probability0.79%
CISA KEVNot currently listed
Published2024-12-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Description

A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode is enabled. Arbitrary code execution may be theoretically possible, albeit practically very difficult to achieve in this context

Weakness classification

  • psirt@fortinet.com: CWE-122
  • nvd@nist.gov: CWE-787

Primary references