CVE-2021-1048

7.8 highKEVEPSS 1.1%

High (7.8) in Android Kernel. In CISA KEV since 2022-05-23. EPSS 1.1% chance of exploitation in the next 30 days.

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 exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-204573007References: Upstream kernel

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)
CISA KEV: listed 2022-05-23, due 2022-06-13
CWE: CWE-416
Published: 2021-12-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

google:android

References

https://source.android.com/security/bulletin/2021-11-01
https://source.android.com/security/bulletin/2021-11-01
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1048

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