AEGLIX vulnerability intelligence
CVE-2021-30807
HIGH · CVSS 7.8 · Analyzed
Published: 2021-10-19 · Updated: 2026-06-17 · Source: NVD
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Vulnerability overview
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.
Severity and scoring
- CVSS score
- 7.8 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Apple · Multiple Products
- Added to catalog
- 2021-11-03
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2021-11-17
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
Before (exclusive): 14.7.1
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Before (exclusive): 14.7.1
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Before (exclusive): 11.5.1
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Before (exclusive): 7.6.1
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://support.apple.com/en-us/HT212622
Release Notes · Vendor Advisory
- https://support.apple.com/en-us/HT212623
Release Notes · Vendor Advisory
- https://support.apple.com/en-us/HT212713
Release Notes · Vendor Advisory
- https://support.apple.com/en-us/HT212622
Release Notes · Vendor Advisory
- https://support.apple.com/en-us/HT212623
Release Notes · Vendor Advisory
- https://support.apple.com/en-us/HT212713
Release Notes · Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30807
Third Party Advisory · US Government Resource