A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gaining elevated permissions and the ability to execute arbitrary code as the system user, through not checking the DLL signature.
Published 2021-09-22 14:15:07
Updated 2023-11-15 18:59:20
Source Trellix
View at NVD,   CVE.org
Vulnerability category: File inclusionExecute code

Exploit prediction scoring system (EPSS) score for CVE-2021-31841

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-31841

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.9
MEDIUM AV:L/AC:M/Au:N/C:C/I:C/A:C
3.4
10.0
NIST
7.3
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
1.3
5.9
NIST
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1.8
5.9
NIST
8.2
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
1.5
6.0
McAfee (DEFUNCT)
8.2
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
1.5
6.0
Trellix

CWE ids for CVE-2021-31841

  • The product does not verify, or incorrectly verifies, the cryptographic signature for data.
    Assigned by:
    • nvd@nist.gov (Primary)
    • psirt@mcafee.com (Primary)
    • trellixpsirt@trellix.com (Secondary)
  • The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.
    Assigned by:
    • nvd@nist.gov (Primary)
    • psirt@mcafee.com (Primary)
    • trellixpsirt@trellix.com (Secondary)

References for CVE-2021-31841

Products affected by CVE-2021-31841

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