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CVE-2021-23877

McAfee Total Protection (MTP) - Privilege Escalation vulnerability

HIGH
7.8
CVSS Score
Published: October 26, 2021 at 09:40 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
1 product affected across 1 vendorTotal Protection

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%

Description

Privilege escalation vulnerability in the Windows trial installer of McAfee Total Protection (MTP) prior to 16.0.34_x may allow a local user to run arbitrary code as the admin user by replacing a specific temporary file created during the installation of the trial version of MTP.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Total Protection· McAfee
95%
v < 16.0.34
Affected range stops below 16.0.34, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISC
Source: [email protected]
https://service.mcafee.com/webcenter/portal/cp/home/articleview?articleId=TS103215

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-269

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