What’s Vulnerable › Vulnerabilities

CVE-2023-21216

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-04 · updated 2026-06-17
• Weakness: CWE-276

Description

In PMRChangeSparseMemOSMem of physmem_osmem_linux.c, there is a possible arbitrary code execution due to a use after free. 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

• Android: all versions

References

• https://source.android.com/security/bulletin/2023-12-01
• https://source.android.com/security/bulletin/2023-12-01

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