Is CVE-2023-21459 actively exploited?

No active exploitation of CVE-2023-21459 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-21459 be exploited remotely?

Yes. CVE-2023-21459 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-21459?

CVE-2023-21459 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-21459

CRITICAL

CVE-2023-21459

CWE-416Published: March 16, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Use after free vulnerability in decon driver prior to SMR Mar-2023 Release 1 allows attackers to cause memory access fault.

NVD Source

Risk Analysis

A critical use-after-free vulnerability in the Samsung decon driver allows attackers to trigger memory access faults. This could lead to system instability or potential code execution.

No public exploit is known, and it is not in the KEV database. It is remotely exploitable with low attack complexity.

Recommended Action

Apply the SMR Mar-2023 Release 1 or later security updates provided by Samsung. Ensure device firmware is kept up to date.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-21459 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.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.