CVE-2021-26109

EUVD-2021-12930
An integer overflow or wraparound vulnerability in the memory allocator of SSLVPN in FortiOS before 7.0.1 may allow an unauthenticated attacker to corrupt control data on the heap via specifically crafted requests to SSLVPN, resulting in potentially arbitrary code execution.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
fortinetCNA
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
Base Score
CVSS 3.x
EPSS Score
Percentile: 79%
Affected Products (NVD)
VendorProductVersion
fortinetfortios
6.0.0 ≤
𝑥
≤ 6.0.12
fortinetfortios
6.2.0 ≤
𝑥
≤ 6.2.9
fortinetfortios
6.4.0 ≤
𝑥
≤ 6.4.5
fortinetfortios
7.0.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://fortiguard.com/advisory/FG-IR-21-049
https://fortiguard.com/advisory/FG-IR-21-049