CVE-2021-1048In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free.
Updated under an hour ago ()
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It affects google android. Add what you run to find out whether that includes you.
CISA lists it as known exploited since May 23, 2022; federal agencies had to remediate by Jun 13, 2022. Treat that date as your deadline.
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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
- CVSS
- 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Added to CISA KEV May 23, 2022; federal remediation due Jun 13, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 1.06% (percentile 64)
- Assigned by
- google_android
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
google android google:android | all versions | NVD |
References
- https://source.android.com/security/bulletin/2021-11-01x-refsource-misc, patch, vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1048third-party-advisory, us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.