CVE-2021-30847

HIGH

7.8

CVSS Score

Published: October 19, 2021 at 01:11 PM UTC

Updated: June 17, 2026 at 03:51 AM UTC

6 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH7.8

Exploit prediction

EPSS 3%

Description

This issue was addressed with improved checks. This issue is fixed in watchOS 8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, iTunes 12.12 for Windows. Processing a maliciously crafted image may lead to arbitrary code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 15.0

Affected range stops below 15.0, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 15.0

Affected range stops below 15.0, so it looks safe — our inference, not a vendor statement

iTunes · Apple

95%

v < 12.12

Affected range stops below 12.12, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 11.6v < 12.12v < 15v < 2021v < 810.15 ≤ v ≤ 10.15.611.0 ≤ v < 11.610.15.7 10.15.7 security_update_2020 10.15.7 security_update_2020-001 10.15.7 security_update_2020-005 10.15.7 security_update_2020-007 10.15.7 security_update_2021-001 10.15.7 security_update_2021-002 10.15.7 security_update_2021-003 10.15.7 security_update_2021-004 10.15.7 supplemental_update

Affected range stops below 11.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 15, so it looks safe — our inference, not a vendor statement

Affected range stops below 2021, so it looks safe — our inference, not a vendor statement

Affected range stops below 8, so it looks safe — our inference, not a vendor statement

tvOS · Apple

95%

v < 15.0

Affected range stops below 15.0, so it looks safe — our inference, not a vendor statement

watchOS · Apple

95%

v < 8.0

Affected range stops below 8.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (11)

Mailing Listx_refsource_FULLDISCRelease NotesThird Party Advisory

Source: [email protected]

http://seclists.org/fulldisclosure/2021/Oct/61

Mailing Listx_refsource_FULLDISCRelease NotesThird Party Advisory

Source: [email protected]

http://seclists.org/fulldisclosure/2021/Oct/62

Mailing Listx_refsource_FULLDISCRelease NotesThird Party Advisory

Source: [email protected]

http://seclists.org/fulldisclosure/2021/Oct/63