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
References (1)
Core 1
Core References
Vendor Advisory
https://fortiguard.com/advisory/FG-IR-20-082
Scores
CVSS v3
5.4
EPSS
0.0129
EPSS Percentile
79.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-122
CWE-787
Status
published
Products (1)
fortinet/fortios
< 5.6.13
Published
Dec 19, 2024
Tracked Since
Feb 18, 2026