Is CVE-2023-20951 actively exploited?

No active exploitation of CVE-2023-20951 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-20951 be exploited remotely?

Yes. CVE-2023-20951 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-20951?

CVE-2023-20951 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-20951

CRITICAL

CVE-2023-20951

CWE-787Published: March 24, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In gatt_process_prep_write_rsp of gatt_cl.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-258652631

NVD Source

Risk Analysis

A missing bounds check in the Android GATT client process allows for an out-of-bounds write. This critical flaw permits remote code execution without requiring user interaction or special privileges.

No public exploit is currently known, and it is not in the CISA KEV. It is remotely exploitable due to the network attack vector and low complexity.

Recommended Action

Apply the latest Android security updates for versions 11, 12, 12L, and 13.

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-2023-20951 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-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.