CVE-2023-21400 | Vulnetix

CVE-2023-21400 PUBLISHED

Reported by google_android · Published July 12, 2023

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.

Affected products

Vendor	Product	Versions
Google	Android	Android kernel
Google	Android	*

Timeline

Jul 5, 2023 CVE Published
Jul 11, 2023 PoC Published (7 in total, the first dated here)
Jul 14, 2023 EPSS Score (30 in total, the first dated here)
Feb 13, 2025 CVE Updated
Feb 23, 2026 Distribution Patch (26 in total, the first dated here)
Feb 23, 2026 Security Advisory (27 in total, the first dated here)
May 20, 2026 Coalition ESS Score

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References

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