CVE-2023-21162
NVD-CWE-noinfoPublished: December 4, 2023· Updated: Jun 17, 2026
Official Description
In RGXUnbackingZSBuffer of rgxta3d.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.
Risk Analysis
This vulnerability is a use-after-free flaw in the kernel that could allow for arbitrary code execution. It is a critical issue with a 9.8 CVSS score, enabling local privilege escalation without user interaction.
No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable.
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Technical Analysis
CVE-2023-21162 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-21162 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts