CVE-2021-31010

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.037 · 90 %ileEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

3.67% (90th) EPSS

CVSS 5 · medium

Is it mine?

18 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2022-08-25remediate by 2022-09-15

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-26

Apple iOS, macOS, watchOS Sandbox Bypass Vulnerability

A deserialization issue was addressed through improved validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 12.5.5, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. A sandboxed process may be able to circumvent sandbox restrictions. Apple was aware of a report that this issue may have been actively exploited at the time of release..

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondaryexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Hsecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: active · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USprimaryCWE-502US

affected products (18)

Products and version ranges known to be affected.

Apple macOSunspecified → 11.6enisa_euvdEU
Apple macOSunspecified → 2021enisa_euvdEU
Apple watchOSunspecified → 12.5enisa_euvdEU
Apple watchOSunspecified → 14.8enisa_euvdEU
Apple watchOSunspecified → 7.6enisa_euvdEU
Apple Inc. MacOS≤ 11.6fstec_bduRU
Apple Inc. MacOS≤ 10.15.7fstec_bduRU
Apple Inc. iOS≤ 12.5.5fstec_bduRU
Apple Inc. iOS12.5.6 → 14.8fstec_bduRU
Apple Inc. iPadOS≤ 14.8fstec_bduRU
Apple Inc. watchOS≤ 7.6.2fstec_bduRU
apple ipados< 14.8nvdUScpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone os12.0 → 12.5.5nvdUScpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone os14.0 → 14.8nvdUScpe: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 → 11.6nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple watchos< 7.6.2nvdUScpe: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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+3739 more

references (16)

External citations — patches, advisories, analysis.

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