CVE-2021-30959

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. Parsing a maliciously crafted audio file may lead to disclosure of user information.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-120

Affected software

No affected versions have been published.

Timeline

Published
Aug 24, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-309605.5A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iCVE-2021-309615.5A buffer overflow issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-008 Catalina, macOS Big SurCVE-2021-309625.5A memory initialization issue was addressed with improved memory handling. This issue is fixed in tvOS 15.2, macOS Big Sur 11.6.2. Parsing aCVE-2021-309635.5A buffer overflow issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-008 Catalina, macOS Big SurCVE-2021-309645.5An inherited permissions issue was addressed with additional restrictions. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2CVE-2021-309656.5A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, mCVE-2021-309667.5A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.CVE-2021-309675.5Description: A permissions issue was addressed with improved validation. This issue is fixed in iOS 15.2 and iPadOS 15.2. A local attacker mCVE-2021-309685.5A validation issue related to hard link behavior was addressed with improved sandbox restrictions. This issue is fixed in macOS Big Sur 11.6CVE-2021-309697.8A path handling issue was addressed with improved validation. This issue is fixed in Security Update 2021-008 Catalina, macOS Big Sur 11.6.2CVE-2021-309705.5A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, macOS Big Sur 11.6.2. A malicious apCVE-2021-309717.8An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.1, iOS 15.2 and iPadOS 15
CVE-2021-30959: Medium severity, CVSS 5.5 | Vulnix