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CVE-2021-42756

CRITICAL
Published 2023-02-16T18:05:39.442Z
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CVSS Score

V3.1
9.3
/10
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 Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.002
probability
of exploitation in the wild

There is a 0.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.582
Higher than 58.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Fortinet

FortiWeb

Affected Versions:

6.4.0 6.3.0 6.2.0 6.1.0 6.0.0 5.9.0 5.8.5 5.8.0 5.7.0 5.6.0 5.8.0 5.7.0 5.6.0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-wqmg-f43p-5ccf

Advisory Details

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.

CVSS Scoring

CVSS Score

9.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-42756
WEB https://fortiguard.com/psirt/FG-IR-21-186

Advisory provided by GitHub Security Advisory Database. Published: February 16, 2023, Modified: February 24, 2023

References

https://fortiguard.com/psirt/FG-IR-21-186
Published: 2023-02-16T18:05:39.442Z
Last Modified: 2024-10-23T14:49:52.406Z
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