CVE-2021-30763: Input Validation
Published Jul 19, 2021
·Updated
ActionKit. An input validation issue was addressed with improved input validation.
Credit
Zachary Keffaber@@QuickUpdate5, Denis Tokarev@@illusionofcha0s, tr3e, George Nosenko, JunDong Xie(Ant Security Light), ryuzaki, Mickey Jin@@patch1t(Trend Micro), Sunglin(Knownsec 404 team), Yizhuo Wang(Group of Software Security In Progress), Tim Michaud@@TimGMichaud(Zoom Video Communications), Linus Henze (pinauten.de), Csaba Fitzl@@theevilbit(Offensive Security), tr3e(Trend Micro Zero Day Initiative), hjy79425575(Trend Micro Zero Day Initiative), Matthew Denton(Google Chrome Security), Jzhu(Baidu Security), Ye Zhang@@co0py_Cat(Baidu Security), CFF(Topsec Alpha Team), CVE-2021-3518, CVE-2018-25010, CVE-2018-25011, CVE-2018-25014, CVE-2020-36328, CVE-2020-36329, CVE-2020-36330, CVE-2020-36331, Anonymous(Trend Micro Zero Day Initiative), Christoph Guttandin(Media Codings), Sergei Glazunov(Google Project Zero), Ivan Fratric(Google Project Zero), vm_call, Nozhdar Abdulkhaleq Shukri, Mickey Jin@@patch1t(Trend Micro working with Trend Micro Zero Day Initiative), Georgi Valkov (httpstorm.com)
Affected Software
6 affected componentsFixes available
Apple WatchOS<7.6
7.6
Apple iPadOS<14.7
Apple iPhone OS<14.7
Apple WatchOS<7.6
Apple iOS<14.7
14.7
Apple iPadOS<14.7
14.7
Event History
Jul 19, 2021
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Sep 8, 2021
CVE Published
via MITRE·01:46 PM
Data Sourced
via MITRE·01:46 PM
DescriptionWeakness
Feb 24, 2026
Updated
via Apple·07:00 PM
Affected Software
Frequently Asked Questions
1
What is CVE-2021-30763?
CVE-2021-30763 is an input validation issue in ActionKit that has been addressed with improved input validation.
2
What software is affected by CVE-2021-30763?
CVE-2021-30763 affects Apple watchOS version up to exclusive 7.6.
3
How can I fix CVE-2021-30763?
To fix CVE-2021-30763, update your Apple watchOS to version 7.6 or later.
4
What is the severity of CVE-2021-30763?
The severity rating for CVE-2021-30763 is not specified.
5
Where can I find more information about CVE-2021-30763?
For more information about CVE-2021-30763, you can refer to the following link: [CVE-2021-30763](https://support.apple.com/en-us/HT212605)