CVE-2021-30834

HIGH

7.8

CVSS Score

Published: October 28, 2021 at 06:17 PM UTC

Updated: June 17, 2026 at 03:50 AM UTC

5 products affected across 1 vendormacOSiPhone OSiPadOS

Using iOS and iPadOS by Apple?

Get instant alerts when new vulnerabilities affect iOS and iPadOS - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.8

Exploit prediction

EPSS 1%

Description

A logic issue was addressed with improved state management. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, watchOS 8, Security Update 2021-007 Catalina. Processing a malicious audio file may result in unexpected application termination or arbitrary code execution.

Affected

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

iPadOS · Apple

95%

v < 14.8v < 15

Affected range stops below 14.8, 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

iPhone OS · Apple

95%

v < 14.8

Affected range stops below 14.8, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 10.15.7v < 202111.0 ≤ v < 11.610.15.7 10.15.7 security_update_2020-1 10.15.7 security_update_2021-1 10.15.7 security_update_2021-2 10.15.7 security_update_2021-3 10.15.7 security_update_2021-4 10.15.7 security_update_2021-5 10.15.7 security_update_2021-6 10.15.7 supplemental_update

Affected range stops below 10.15.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.6, 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

tvOS · Apple

95%

v < 15

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

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

watchOS · Apple

95%

v < 8

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

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