Security readout for executives and security teams
Plain-English summary
This flaw affects McAfee VirusScan Enterprise 8.8 before Patch 14 on Windows clients. When a Windows session is locked, an unauthorized person may still interact with a McAfee threat alert window, potentially bypassing expected lock-screen protections and escalating privileges. The attack is constrained by physical access, high complexity, and user interaction.
Executive priority
Handle as a moderate-priority endpoint hardening issue. It is not remotely scalable based on the provided evidence, but it can undermine lock-screen trust on affected systems and has high confidentiality, integrity, and availability impact if successfully exploited.
Technical view
CVE-2019-3588 is a CWE-269 privilege escalation issue in McTray.exe for McAfee VirusScan Enterprise 8.8.x before Patch 14. The CVSS 3.1 vector is AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating local physical access, high attack complexity, required user interaction, and high impact if successful.
Likely exposure
Exposure is likely limited to Windows endpoints still running McAfee VirusScan Enterprise 8.8.x before Patch 14. Systems without VSE 8.8.x, or those already updated to Patch 14 or later, are not identified as affected in the provided sources.
Exploitation context
The source bundle does not report active exploitation, and this CVE is not listed as KEV. Exploitation requires physical access and interaction with the On-Access Scan Messages Threat Alert Window while the Windows login screen is locked, which reduces scale but matters for shared, unattended, or publicly accessible endpoints.
Researcher notes
Evidence is limited to the CVE record and the referenced McAfee advisory. The available data identifies the component, affected version range, required physical access, UI interaction condition, and fixed threshold, but does not provide exploit maturity, attack prevalence, or detailed remediation notes beyond Patch 14.
Mitigation direction
- Update McAfee VirusScan Enterprise 8.8 to Patch 14 or later.
- Inventory Windows endpoints for VSE 8.8.x installations.
- Prioritize shared or physically accessible systems for remediation.
- Restrict physical access to affected endpoints until patched.
- Review McAfee advisory SB10302 for environment-specific guidance.
Validation and detection
- Confirm installed VSE version and patch level on Windows clients.
- Verify affected endpoints are at Patch 14 or newer.
- Check whether locked-session threat alerts remain interactable after remediation.
- Review endpoint records for unauthorized interactive activity around locked sessions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-3588 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H0.45.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://kc.mcafee.com/corporate/index?page=content&id=SB10302CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.