CVE-2021-23883

mediumpriority · track · 18EPSS 0.003 · 20 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.27% (20th) EPSS

CVSS 4.9 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

A Null Pointer Dereference vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2021 Update allows a local administrator to cause Windows to crash via a specific system call which is not handled correctly. This varies by machine and had partial protection prior to this update.

cvss

Technical severity, 0–10. One row per scoring source.

4.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.9mediumAV:L/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 6.9

v3.14.4mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 3.6

v3.14mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.14mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:Hsecondary · trellixpsirt@trellix.comexploitability 0.3 · impact 3.6

v3.14.1mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USprimary

affected products (2)

Products and version ranges known to be affected.

McAfee LLC Endpoint Security (ENS) for Windows10.7.x → 10.7.0 February 2021enisa_euvdEU
mcafee endpoint security< 10.7.0nvdUScpe:2.3:a:mcafee:endpoint_security:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-02-10modified 2026-06-17

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+8782 more

references (5)

External citations — patches, advisories, analysis.

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