CVE-2021-42756

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
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
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