medium
5.5
CWE
295
Advisory Published
CVE Published
Updated

CVE-2022-26766

First published: Mon May 16 2022(Updated: )

A certificate parsing issue was addressed with improved checks. This issue is fixed in tvOS 15.5, iOS 15.5 and iPadOS 15.5, Security Update 2022-004 Catalina, watchOS 8.6, macOS Big Sur 11.6.6, macOS Monterey 12.4. A malicious app may be able to bypass signature validation.

Credit: Linus Henze Pinauten GmbHLinus Henze Pinauten GmbHLinus Henze Pinauten GmbHLinus Henze Pinauten GmbHLinus Henze Pinauten GmbHLinus Henze Pinauten GmbH product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple watchOS<8.6
8.6
Apple tvOS<15.5
15.5
Apple Catalina
Apple macOS Big Sur<11.6.6
11.6.6
<12.4
12.4
Apple iOS<15.5
15.5
Apple iPadOS<15.5
15.5
Apple iPadOS<15.5
Apple iPhone OS<15.5
Apple Mac OS X<10.15.7
Apple Mac OS X=10.15.7
Apple Mac OS X=10.15.7-security_update_2020-001
Apple Mac OS X=10.15.7-security_update_2021-001
Apple Mac OS X=10.15.7-security_update_2021-002
Apple Mac OS X=10.15.7-security_update_2021-003
Apple Mac OS X=10.15.7-security_update_2021-004
Apple Mac OS X=10.15.7-security_update_2021-005
Apple Mac OS X=10.15.7-security_update_2021-006
Apple Mac OS X=10.15.7-security_update_2021-007
Apple Mac OS X=10.15.7-security_update_2021-008
Apple Mac OS X=10.15.7-security_update_2022-001
Apple Mac OS X=10.15.7-security_update_2022-002
Apple Mac OS X=10.15.7-security_update_2022-003
Apple macOS>=11.0<11.6.6
Apple macOS>=12.0<12.4
Apple tvOS<15.5
Apple watchOS<8.6

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2022-26766?

    CVE-2022-26766 is a certificate parsing issue that was addressed with improved checks.

  • Which software is affected by CVE-2022-26766?

    CVE-2022-26766 affects Apple watchOS 8.6, Apple tvOS 15.5, Apple macOS Big Sur 11.6.6, Apple iOS 15.5, Apple iPadOS 15.5, and Apple macOS Monterey 12.4.

  • How can I fix CVE-2022-26766?

    To fix CVE-2022-26766, update your software to the specified versions: Apple watchOS 8.6, Apple tvOS 15.5, Apple macOS Big Sur 11.6.6, Apple iOS 15.5, Apple iPadOS 15.5, or Apple macOS Monterey 12.4.

  • Where can I find more information about CVE-2022-26766?

    You can find more information about CVE-2022-26766 at the following references: [Link 1](https://support.apple.com/en-us/HT213254), [Link 2](https://support.apple.com/en-us/HT213257), [Link 3](https://support.apple.com/en-us/HT213255).

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