Vulnerability · Published Jun 10, 2021 · Assigned by trellix

CVE-2021-31840DLL preload vulnerability in McAfee Agent for Windows

High 7.3

In plain English

A high-severity uncontrolled search path in McAfee Agent for Windows from McAfee,LLC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.3%top 71.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A vulnerability in the preloading mechanism of specific dynamic link libraries in McAfee Agent for Windows prior to 5.7.3 could allow an authenticated, local attacker to perform a DLL preloading attack with unsigned DLLs. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. This would result in the user gaining elevated permissions and being able to execute arbitrary code.

Affected products (as reported)

Vendor	Product	Versions
McAfee,LLC	McAfee Agent for Windows	unspecified – before 5.7.3

Weakness: CWE-427 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

References

https://kc.mcafee.com/corporate/index?page=content&id=SB10362 x_refsource_CONFIRM