CVE-2021-42756

EUVD-2021-29714
Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
fortinetCNA
9.3 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/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: 99%
Affected Products (NVD)
VendorProductVersion
fortinetfortiweb
5.6.0 ≤
𝑥
< 6.0.8
fortinetfortiweb
6.1.0 ≤
𝑥
< 6.1.3
fortinetfortiweb
6.2.0 ≤
𝑥
< 6.2.7
fortinetfortiweb
6.3.0 ≤
𝑥
< 6.3.17
fortinetfortiweb
6.4.0 ≤
𝑥
≤ 6.4.2
𝑥
= Vulnerable software versions