What’s Vulnerable › Vulnerabilities

CVE-2021-1048: Android Kernel Use-After-Free Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-05-23
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-15 · updated 2026-06-17
• Weakness: CWE-416

Description

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

Affected products

• Android: all versions

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

Get alerted when CVE-2021-1048 or the next vulnerability affects your stack