CVEvulnerability

CVE-2021-42756

9.8 CRITICAL Published 2023-02-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-02-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-121, CWE-787

Description

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.

Affected configurations

• fortinet fortiweb (>= 5.6.0 < 6.0.8) • fortinet fortiweb (>= 6.1.0 < 6.1.3) • fortinet fortiweb (>= 6.2.0 < 6.2.7) • fortinet fortiweb (>= 6.3.0 < 6.3.17) • fortinet fortiweb (>= 6.4.0 <= 6.4.2)

Related

Weakness · CWE (2)

  • CWE-121 Stack-based Buffer Overflow weakness
  • CWE-787 Out-of-bounds Write weakness

References