CVE-2021-30883

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.147 · 97 %ileEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

14.7% (97th) EPSS

CVSS 9.3 · high

Is it mine?

16 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2022-05-23remediate by 2022-06-13

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-25

Apple Multiple Products Memory Corruption Vulnerability

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..

cvss

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

9.3

010

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

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.18.8highAV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-190US

affected products (16)

Products and version ranges known to be affected.

Apple iOS and iPadOSunspecified → 14.8enisa_euvdEU
Apple iOS and iPadOSunspecified → 15.0enisa_euvdEU
Apple macOSunspecified → 11.6enisa_euvdEU
Apple macOSunspecified → 12.0enisa_euvdEU
Apple macOSunspecified → 15.1enisa_euvdEU
Apple macOSunspecified → 8.1enisa_euvdEU
Apple Inc. iOS≤ 15.0.2fstec_bduRU
Apple Inc. iPadOS≤ 15.0.2fstec_bduRU
apple ipados< 14.8.1nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple ipados15.0 → 15.0.2nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone os< 14.8.1nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone os15.0 → 15.0.2nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos11.0 → 11.6.1nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple macos= 12.0nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos< 15.1nvdUScpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos< 8.1nvdUScpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

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

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+16035 more

references (29)

External citations — patches, advisories, analysis.

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