Security readout for executives and security teams
Plain-English summary
This issue affects McAfee Endpoint Security for Windows before the 10.7.0 April 2020 Update. A Windows administrator could use MfeUpgradeTool.exe to bypass authentication around policy settings. The main business concern is unauthorized weakening or disruption of endpoint security policy after admin-level access already exists.
Executive priority
Handle as a moderate-priority endpoint protection hygiene item. It is important for legacy ENS estates because policy integrity is affected, but the provided evidence does not support emergency treatment as remotely exploitable or actively exploited.
Technical view
CVE-2020-7276 is a local authentication bypass in MfeUpgradeTool in McAfee ENS for Windows 10.x. The CVSS 3.1 score is 6.4 with local access, high complexity, high privileges, and user interaction required. Impact is strongest for policy integrity, with limited confidentiality and availability impact.
Likely exposure
Exposure is likely limited to organizations still running McAfee Endpoint Security for Windows 10.x versions before the 10.7.0 April 2020 Update. The flaw requires administrator privileges, so internet-facing exposure is not indicated by the provided sources.
Exploitation context
The provided bundle does not show CISA KEV listing or active exploitation evidence. The attack context is post-admin local access, where misuse could affect endpoint protection policy rather than provide initial compromise.
Researcher notes
Key constraints are PR:H, AV:L, AC:H, and UI:R. The issue is policy-management authentication bypass through MfeUpgradeTool.exe. Public evidence in the bundle is sparse beyond the CVE record and McAfee advisory reference, so avoid claims about exploit maturity or detailed attack paths.
Mitigation direction
- Upgrade affected McAfee ENS for Windows deployments to 10.7.0 April 2020 Update or later.
- Review McAfee security bulletin SB10309 for vendor-specific remediation guidance.
- Prioritize endpoints where local administrator rights are broadly assigned.
- Restrict and audit use of administrative tools on managed endpoints.
Validation and detection
- Inventory McAfee ENS for Windows versions across managed endpoints.
- Confirm no endpoints remain below 10.7.0 April 2020 Update.
- Review endpoint management records for policy changes around upgrade activity.
- Check local administrator group membership on systems still running ENS 10.x.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-7276 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
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L
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:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L0.65.3Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://kc.mcafee.com/corporate/index?page=content&id=SB10309CVE 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 Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.