UpHeron
All vulnerabilities

Servers and applications

CVE-2020-12819

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…

Severity
High 7.5
Published
19 Dec 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
5.6.13, 6.0.11, 6.2.5, 6.4.2
Sources
NVD

Affected software

SoftwareAffected versions
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • Every version before 5.6.13
  • From 6.0.0 before 6.0.11
  • From 6.2.0 before 6.2.5
  • From 6.4.0 before 6.4.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-12819
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-12819