What’s Vulnerable › Vulnerabilities

CVE-2021-31841: DLL side loading vulnerability in MA for Windows

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-22 · updated 2026-06-17
• Weakness: CWE-347

Description

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.

Affected products

• Intel McAfee Agent: before 5.7.4 — fixed in 5.7.4

How to fix

Upgrade to a fixed version: Intel McAfee Agent 5.7.4. Check the vendor advisory for mitigations.

References

• https://kc.mcafee.com/corporate/index?page=content&id=SB10369
• https://kc.mcafee.com/corporate/index?page=content&id=SB10369

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