CVE-2021-31847
mediumpriority · track · 31EPSS 0.004 · 34 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–8.2
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://kc.mcafee.com/corporate/index?page=content&id=SB10369cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.3200cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021092904cnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-21-1104/cnnvd
- https://kc.mcafee.com/corporate/index?page=content&id=SB10369enisa_euvd
- https://www.zerodayinitiative.com/advisories/ZDI-21-1104/enisa_euvd
- https://kc.mcafee.com/corporate/index?page=content&id=SB10369Broken Linknvd
- https://www.zerodayinitiative.com/advisories/ZDI-21-1104/Third Party AdvisoryVDB Entrynvd
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