Is CVE-2021-23877 in the CISA KEV catalog?

No. CVE-2021-23877 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-23877?

CVE-2021-23877 has a CVSS v3 base score of 6.7 (MEDIUM).

What is the EPSS score for CVE-2021-23877?

CVE-2021-23877 has an EPSS score of 0.36% (28th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-23877?

Upgrade total protection to 16.0.34 or later.

CVE & CISA-KEV Catalog

CVE-2021-23877

MEDIUM

6.7

CVSS v3

NVD

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.

CWE-269Improper Privilege Management

How to fix

Remediation Available

total protectionNVD

Affected:< 16.0.34Fixed in:16.0.34CVE-2021-23877derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.36%probability of exploitation in 30 days

28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Other references1

service.mcafee.com

Related Vulnerabilities

Other CWE-269 (Improper Privilege Management) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-12635	Critical	9.8	100%	-	Fix
CVE-2022-24637	Critical	9.8	99%	-	Fix
CVE-2017-5689	Critical	9.8	92%	KEV	Fix
CVE-2020-3243	Critical	9.8	88%	-	-
CVE-2024-21888	High	8.8	87%	-	-
CVE-2022-0441	Critical	9.8	85%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.