CVEvulnerability

CVE-2021-30807

7.8 HIGH Known exploited Published 2021-10-19 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Apple Multiple Products Memory Corruption Vulnerability — Apple Multiple Products

Apple iOS, iPadOS, macOS, and watchOS IOMobileFrameBuffer contain a memory corruption vulnerability which may allow an application to execute code with kernel privileges.

Added to KEV
2021-11-03
Remediation due
2021-11-17
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-30807
Status
Analyzed
Published
2021-10-19
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
CWE-787

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.5.1, iOS 14.7.1 and iPadOS 14.7.1, watchOS 7.6.1. 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.

Affected configurations

• apple ipados (< 14.7.1) • apple iphone os (< 14.7.1) • apple macos (< 11.5.1) • apple watchos (< 7.6.1)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References