Vulnerability in Google Android

CVE-2023-21400

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-21400?
CVE-2023-21400 is a medium-severity vulnerability in Google Android, classified under Improper Locking. CVSS score: 6.7/10. Published 2023-07-13.
How severe is CVE-2023-21400?
Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2023-21400 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.