CVE-2023-21164
There is elevation of privilege.
In DevmemIntMapPMR of devicemem_server.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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In DevmemIntMapPMR of devicemem_server.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.
- Record
CVE-2023-21164- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
CVE List No score
In DevmemIntMapPMR of devicemem_server.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.
- Record
CVE-2023-21164- Updated
- 2026-11-02
EUVDEUVD-2023-25332 No score
In DevmemIntMapPMR of devicemem_server.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.
- Record
EUVD-2023-25332- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fv9m-x5m2-3pqm
There is elevation of privilege.
There is elevation of privilege.
- Record
GHSA-fv9m-x5m2-3pqm- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVASB-A-292002918 No score
In DevmemIntMapPMR of devicemem_server.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.
- Record
ASB-A-292002918- Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
:unknown:Android |
SoCVersion:0 up to SoCVersion:2023-12-05, plus listed versions SoCVersion |
SoCVersion:2023-12-05 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-21164 is a critical vulnerability (CVSS 9.8) in Google Android, published December 1, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. Fixed in :unknown: SoCVersion:2023-12-05.