CVE-2023-21401 | Vulnetix

CVE-2023-21401 PUBLISHED

Reported by google_android · Published December 4, 2023

In DevmemIntChangeSparse of devicemem_server.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

Vendor	Product	Versions
Google	Android	Android SoC
Google	Android	*

Timeline

Dec 4, 2023 CVE Published
Dec 5, 2023 EPSS Score (30 in total, the first dated here)
Dec 6, 2023 CVE Updated
Dec 24, 2023 PoC Published
May 20, 2026 Coalition ESS Score
Jun 2, 2026 Security Advisory (2 in total, the first dated here)
Nov 4, 2026 Distribution Patch

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References

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