CVE-2019-3588
CWE-269Published: June 10, 2020· Updated: Jun 17, 2026
Official Description
Privilege Escalation vulnerability in Microsoft Windows client (McTray.exe) in McAfee VirusScan Enterprise (VSE) 8.8 prior to Patch 14 may allow unauthorized users to interact with the On-Access Scan Messages - Threat Alert Window when the Windows Login Screen is locked.
Technical Analysis
CVE-2019-3588 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Related CVEs (CWE-269)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-3588 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts