high
7.8
CWE
787
Advisory Published
CVE Published
Updated

CVE-2021-1858

First published: Mon Apr 26 2021(Updated: )

ImageIO. An out-of-bounds write issue was addressed with improved bounds checking.

Credit: Mickey Jin Qi Sun Trend Micro working with Trend MicroMickey Jin Trend Micro product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.3
11.3
tvOS<14.5
14.5
macOS Catalina
Apple iOS, iPadOS, and watchOS<14.5
14.5
Apple iOS, iPadOS, and watchOS<14.5
14.5
Apple iOS, iPadOS, and watchOS<7.4
7.4
Apple iOS, iPadOS, and watchOS<14.5
iOS<14.5
Apple iOS and macOS=10.14
Apple iOS and macOS=10.14.0
Apple iOS and macOS=10.14.1
Apple iOS and macOS=10.14.2
Apple iOS and macOS=10.14.3
Apple iOS and macOS=10.14.4
Apple iOS and macOS=10.14.4-beta4
Apple iOS and macOS=10.14.5
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.15
Apple iOS and macOS=10.15.1
Apple iOS and macOS=10.15.2
Apple iOS and macOS=10.15.3
Apple iOS and macOS=10.15.4
Apple iOS and macOS=10.15.5
Apple iOS and macOS=10.15.6
Apple iOS and macOS=10.15.6
Apple iOS and macOS=10.15.6-supplemental_update
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS>=11.0<11.3
tvOS<14.5
Apple iOS, iPadOS, and watchOS<7.4

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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-2021-1858?

    CVE-2021-1858 is a vulnerability in ImageIO that can lead to arbitrary code execution.

  • How severe is CVE-2021-1858?

    CVE-2021-1858 is a serious vulnerability that can lead to arbitrary code execution.

  • Which software versions are affected by CVE-2021-1858?

    CVE-2021-1858 affects Apple iOS up to version 14.5, Apple iPadOS up to version 14.5, Apple watchOS up to version 7.4, Apple macOS Big Sur up to version 11.3, Apple Catalina, and Apple tvOS up to version 14.5.

  • How can I fix CVE-2021-1858?

    To fix CVE-2021-1858, update your Apple device to the latest available version of iOS, iPadOS, watchOS, macOS Big Sur, Catalina, or tvOS.

  • Where can I find more information about CVE-2021-1858?

    You can find more information about CVE-2021-1858 on the official Apple support page: [https://support.apple.com/en-us/HT212326](https://support.apple.com/en-us/HT212326).

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