high
7.8
CWE
787
Advisory Published
CVE Published
Updated
Advisory Published

CVE-2020-27897: Apple macOS AppleIntelKBLGraphics IOCTL 0x10003 Out-Of-Bounds Write Privilege Escalation Vulnerability

First published: Thu Nov 12 2020(Updated: )

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.

Credit: ABC Research s.r.o. Trend Micro Zero Day InitiativeXiaolong Bai Min (Spark) Zheng Alibaba Inc Luyi Xing Indiana University Bloomington product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.0.1
11.0.1
Apple macOS<11.1
11.1
macOS Catalina
macOS Mojave
Apple iOS and macOS>=10.14<10.14.6
Apple iOS and macOS>=10.15<10.15.7
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_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-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-supplemental_update
macOS>=11.0<11.1
macOS

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2020-27897?

    CVE-2020-27897 is an out-of-bounds write vulnerability in the Intel Graphics Driver that has been addressed with improved bounds checking.

  • What is the severity of CVE-2020-27897?

    The severity of CVE-2020-27897 is not specified in the provided information.

  • What software versions are affected by CVE-2020-27897?

    CVE-2020-27897 affects macOS Big Sur versions up to and including 11.0.1, and macOS Catalina and Mojave are also potentially affected.

  • How can I mitigate CVE-2020-27897?

    To mitigate CVE-2020-27897, update your macOS Big Sur to version 11.1 or later when available, as Apple has addressed this vulnerability in macOS Big Sur 11.1.

  • Where can I find more information about CVE-2020-27897?

    More information about CVE-2020-27897 can be found on the Apple support page: [https://support.apple.com/en-us/HT212011](https://support.apple.com/en-us/HT212011)

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203