CASCACascade Atlas

Evidence dossier

CVE-2021-23874

McAfee Total Protection (MTP) privilege escalation vulnerability

53.5–77.5Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Feb 10, 2021
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS1.03%

2026-07-18 · v2026.06.15 · percentile 59.7%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

trellixoriginal assertion
container

McAfee Total Protection (MTP) privilege escalation vulnerability

CISA KEVoriginal assertion
observed_exploitation

McAfee Total Protection (MTP) Improper Privilege Management Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.010260000000; percentile 0.597390000000

Applicability

Cited product scope

Trace impact →
McAfee,LLCMcAfee Total Protection (MTP)
[{"status": "affected", "version": "unspecified", "lessThan": "16.0.30", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:mcafee:total_protection:*:*:*:*:*:*:*:*; end excluding 16.0.30supported

Assessments

CVSS by origin

7.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6
nvd@nist.govCVSS 2.0 · role PrimaryAV:L/AC:L/Au:N/C:P/I:P/A:P
8.2
trellixpsirt@trellix.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
8.2
trellixCVSS 3.1 · role unknownCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.