What is CVE-2021-1048?

CVE-2021-1048 is a vulnerability in Android. Published 2021-12-15.

Is CVE-2021-1048 known to be exploited?

Yes. CVE-2021-1048 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-23), indicating it is being actively exploited. 18 public proof-of-concept repositories are indexed.

Vulnerability in Android

CVE-2021-1048

In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for ex…

EPSS: 0.009 (76.3th 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 2022-05-23. 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: 2022-06-13.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

source.android.com/security/bulletin/2021-11-01 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-1048?: CVE-2021-1048 is a vulnerability in Android. Published 2021-12-15.
Is CVE-2021-1048 known to be exploited?: Yes. CVE-2021-1048 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-23), indicating it is being actively exploited. 18 public proof-of-concept repositories are indexed.