CVE-2021-30987

lowpriority · track · 22OT risk · elevatedEPSS 0.003 · 17 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (17th) EPSS

CVSS 2.1 · low

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

An access issue was addressed with improved access restrictions. This issue is fixed in macOS Monterey 12.1. A device may be passively tracked via BSSIDs.

cvss

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

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.5

v2.02.1lowAV:L/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimary

affected products (7)

Products and version ranges known to be affected.

Apple macOS Big Sur <11.6.2all versionscert_bundDE
Apple macOS Catalinaall versionscert_bundDEcpe:/o:apple:mac_os:catalina
Apple macOS Monterey <12.1all versionscert_bundDE
Apple macOS≤ Big Sur <11.6.2cert_bundDE
Apple macOS≤ Monterey <12.1cert_bundDE
Apple macOSunspecified → 12.1enisa_euvdEU
apple macos12.0 → 12.1nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0631Apple macOS: Mehrere SchwachstellenDeutsch2021-12-13csaf · cert_bundDE
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in Apple macOS ausnutzen, um beliebigen Programmcode auszuführen, beliebigen Programmcode mit Kernel-Privilegien auszuführen, seine Privilegien zu erweitern, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen und Sicherheitsmaßnahmen zu umgehen.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2021-08-24modified 2026-06-17

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+5006 more

references (7)

External citations — patches, advisories, analysis.

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