Memory Handling Vulnerability in Apple Operating Systems and Safari
CVE-2026-20635

4.3MEDIUM

Key Information:

Vendor

Apple
Status
Safari
Mac OS
Watch OS
Visionos
Vendor
CVE Published:
11 February 2026

What is CVE-2026-20635?

A memory handling issue in various Apple operating systems and Safari has been identified. This vulnerability can be triggered by processing maliciously crafted web content, potentially resulting in unexpected process crashes. Apple has addressed this issue with updates across their platforms, including watchOS, tvOS, macOS, iOS, iPadOS, and Safari. Users are encouraged to update their devices to the latest versions to mitigate the risks associated with this vulnerability.

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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/126354
https://support.apple.com/en-us/126348
https://support.apple.com/en-us/126352

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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