Memory Handling Vulnerability in Apple Operating Systems
CVE-2026-20609

4.4MEDIUM

Key Information:

Vendor

Apple
Status
Mac OS
Watch OS
Visionos
iOS And iPad OS
Vendor
CVE Published:
11 February 2026

What is CVE-2026-20609?

A vulnerability exists in multiple Apple operating systems due to improper memory handling, which can be exploited through the processing of maliciously crafted files. This may lead to a denial-of-service condition or the disclosure of sensitive memory contents, posing serious security risks. Apple has addressed this issue in recent updates, underscoring the importance of keeping devices up-to-date to mitigate potential exploitation.

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Affected Version(s)

iOS and iPadOS < 26.3

iOS and iPadOS < 18.7

macOS < 26.3

References

https://support.apple.com/en-us/126348
https://support.apple.com/en-us/126352
https://support.apple.com/en-us/126353

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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