CVE-2021-39793 Google CVE debrief

Who should care

Anyone responsible for Google Pixel devices should pay attention, especially mobile device administrators, endpoint security teams, and organizations managing corporate or bring-your-own-device fleets.

Technical summary

The supplied corpus identifies the issue as an out-of-bounds write affecting Google Pixel. Out-of-bounds write bugs are memory-safety defects that can lead to unstable behavior or broader security impact, but the supplied sources do not provide more specific technical details such as affected models, attack vector, or exact consequence. CISA’s KEV listing confirms the vulnerability has been exploited in the wild.

Defensive priority

High. CISA’s KEV inclusion means this issue is already known to be exploited, and the catalog assigns a remediation due date of 2022-05-02.

Recommended defensive actions

• Apply updates per vendor instructions as soon as possible.
• Check whether any Google Pixel devices are present in your fleet and confirm their patch status.
• Prioritize remediation for managed devices that are actively used or exposed to higher-risk environments.
• Verify that endpoint management and compliance tools are reporting current security update levels for affected devices.
• Track the CISA KEV catalog and vendor advisories for any follow-on guidance.

Evidence notes

Evidence is limited to the supplied CVE metadata and CISA KEV source item. The corpus confirms the CVE ID, product family (Google Pixel), vulnerability type (out-of-bounds write), KEV status, date added (2022-04-11), due date (2022-05-02), and the required action text: apply updates per vendor instructions. No additional exploit details, affected versions, or CVSS score were supplied.

Official resources