Privilege escalation in Mcafee Agent
CVE-2021-31847
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.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Mcafee Agent
- Mcafee,llc Mcafee Agent For Windows — versions unspecified
Weakness classification (CWE)
References
- kc.mcafee.com/corporate/index (Broken Link)
- www.zerodayinitiative.com/advisories/ZDI-21-1104/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31847?
- CVE-2021-31847 is a high-severity vulnerability in Mcafee Agent, classified under Improper Privilege Management. CVSS score: 8.2/10. Published 2021-09-22.
- How severe is CVE-2021-31847?
- High severity. CVSS v3 base score is 8.2 out of 10.