CVE-2021-23874

HIGHNVD 8.29.0▲Trending — 4 sources updated this weekExploited in the wild

8.2

Arbitrary Process Execution vulnerability in McAfee Total Protection (MTP) prior to 16.0.30 allows a local user to gain elevated privileges and execute arbitrary code bypassing MTP self-defense.

CVSS v3: 8.2
EG Score: 9.0(high)
EPSS: 73.0%
KEV: ⚠ Exploited

Published

February 10, 2021

Last Modified

November 3, 2025

Advisory Details (1)

Auto-updated Jun 2, 2026

⚠️ Active exploitation confirmed. Patch available. Sources: cisa.

cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-23874

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 17:17 UTCEG score recompute
2026-06-04 17:17 UTCGHSA enrichment
2026-06-04 13:10 UTCepss_batch
2026-06-04 13:02 UTCEG score recompute
2026-06-04 13:02 UTCGHSA enrichment
2026-06-04 08:47 UTCEG score recompute
2026-06-04 08:47 UTCGHSA enrichment
2026-06-04 04:32 UTCEG score recompute
2026-06-04 04:32 UTCGHSA enrichment
2026-06-04 00:17 UTCEG score recompute
2026-06-04 00:17 UTCGHSA enrichment
2026-06-03 20:02 UTCEG score recompute
2026-06-03 20:02 UTCGHSA enrichment
2026-06-03 19:09 UTCkev_newly_listed
2026-06-03 15:47 UTCEG score recompute
2026-06-03 15:47 UTCGHSA enrichment
2026-06-03 11:32 UTCEG score recompute
2026-06-03 11:32 UTCGHSA enrichment
2026-06-03 07:16 UTCEG score recompute
2026-06-03 07:16 UTCGHSA enrichment

Frequently asked(6)

What is CVE-2021-23874?

CVE-2021-23874 is a high vulnerability published on February 10, 2021. Arbitrary Process Execution vulnerability in McAfee Total Protection (MTP) prior to 16.0.30 allows a local user to gain elevated privileges and execute arbitrary code bypassing MTP self-defense.

When was CVE-2021-23874 disclosed?

CVE-2021-23874 was first published in the National Vulnerability Database on February 10, 2021, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-23874 actively exploited?

Yes. CISA added CVE-2021-23874 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting McAfee McAfee Total Protection (MTP). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2021-23874?

CVE-2021-23874 has a CVSS v3 base score of 8.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

Which products are affected by CVE-2021-23874?

CVE-2021-23874 affects McAfee McAfee Total Protection (MTP). The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2021-23874?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-23874, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-23874

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CVE-2021-23874

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Known Exploited Vulnerabilities Catalog | CISA

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-23874?

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Advisory Details (1)

Frequently asked(6)

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