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CVE-2021-31847

HIGH
Published 2021-09-22T13:25:18
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Expert Analysis

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CVSS Score

V3.1
8.2
/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.000
probability
of exploitation in the wild

There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.082
Higher than 8.2% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

Improper access control vulnerability in the repair process for McAfee Agent for Windows prior to 5.7.4 could allow a local attacker to perform a DLL preloading attack using unsigned DLLs. This would result in elevation of privileges and the ability to execute arbitrary code as the system user, through not correctly protecting a temporary directory used in the repair process and not checking the DLL signature.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

McAfee,LLC

McAfee Agent for Windows

Affected Versions:

unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-4h6j-v5px-xwg7

Advisory Details

Improper access control vulnerability in the repair process for McAfee Agent for Windows prior to 5.7.4 could allow a local attacker to perform a DLL preloading attack using unsigned DLLs. This would result in elevation of privileges and the ability to execute arbitrary code as the system user, through not correctly protecting a temporary directory used in the repair process and not checking the DLL signature.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-31847
WEB https://kc.mcafee.com/corporate/index?page=content&id=SB10369
WEB https://www.zerodayinitiative.com/advisories/ZDI-21-1104

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: November 15, 2023

References

https://kc.mcafee.com/corporate/index?page=content&id=SB10369
https://www.zerodayinitiative.com/advisories/ZDI-21-1104/
Published: 2021-09-22T13:25:18
Last Modified: 2024-08-03T23:10:30.809Z
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