CVE-2020-12820 | BDVDB-2026-259758 Detail

Description#

Under non-default configuration, a stack-based buffer overflow in FortiOS version 6.0.10 and below, version 5.6.12 and below may allow a remote attacker authenticated to the SSL VPN to crash the FortiClient NAC daemon (fcnacd) and potentially execute arbitrary code via requesting a large FortiClient file name. We are not aware of proof of concept code successfully achieving the latter.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12024-12-19Record published in the CVE List.
2. Version 22024-12-20Most recent update recorded in the CVE List.