What is CVE-2021-39793?

CVE-2021-39793 is a vulnerability in Android. Published 2022-03-16.

Is CVE-2021-39793 known to be exploited?

Yes. CVE-2021-39793 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-11), indicating it is being actively exploited. 11 public proof-of-concept repositories are indexed.

Vulnerability in Android

CVE-2021-39793

In kbase_jd_user_buf_pin_pages of mali_kbase_mem.c, there is a possible out of bounds write due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction…

EPSS: 0.001 (29.5th percentile) — read the EPSS interpretation.

Affected products

N/a Android — versions Android kernel

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-04-11. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-02.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

source.android.com/security/bulletin/pixel/2022-03-01 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-39793?: CVE-2021-39793 is a vulnerability in Android. Published 2022-03-16.
Is CVE-2021-39793 known to be exploited?: Yes. CVE-2021-39793 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-11), indicating it is being actively exploited. 11 public proof-of-concept repositories are indexed.