CVE-2021-30940

mediumpriority · track · 22EPSS 0.010 · 61 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.96% (61st) EPSS

CVSS 4.3 · medium

Is it mine?

21 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.1, iOS 15.2 and iPadOS 15.2, macOS Big Sur 11.6.2, Security Update 2021-008 Catalina. Processing a maliciously crafted USD file may disclose memory contents.

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

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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:N/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-120USprimary

affected products (21)

Products and version ranges known to be affected.

Apple iOS <15.2all versionscert_bundDE
Apple iPadall versionscert_bundDEcpe:/h:apple:ipad:-
Apple iPadOS <15.2all versionscert_bundDE
Apple iPhoneall versionscert_bundDEcpe:/h:apple:iphone:-
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 IOS< 15.2cert_bundDE
Apple iPadOS< 15.2cert_bundDE
Apple macOS≤ Monterey <12.1cert_bundDE
Apple macOS≤ Big Sur <11.6.2cert_bundDE
Apple iOS and iPadOSunspecified → 15.2enisa_euvdEU
Apple macOSunspecified → 11.6enisa_euvdEU
Apple macOSunspecified → 12.1enisa_euvdEU
Apple macOSunspecified → 2021enisa_euvdEU
apple ipados< 15.2nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone os< 15.2nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple mac os x10.15 → 10.15.7nvdUScpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple mac os x= 10.15.7nvdUScpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple macos11.0 → 11.6.2nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

showing 20 of 21

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0489Apple iOS: Mehrere SchwachstellenDeutsch2021-12-13csaf · cert_bundDE
Ein entfernter, anonymer, physischer oder lokaler Angreifer kann mehrere Schwachstellen in Apple iOS, Apple iPadOS, Apple iPhone und Apple iPad 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, Sicherheitsmaßnahmen zu umgehen und Dateien zu manipulieren.
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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references (17)

External citations — patches, advisories, analysis.

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