Is CVE-2023-40078 actively exploited?

No active exploitation of CVE-2023-40078 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-40078 be exploited remotely?

Yes. CVE-2023-40078 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-40078?

CVE-2023-40078 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-40078

CRITICAL

CVE-2023-40078

CWE-787Published: December 4, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In a2dp_vendor_opus_decoder_decode_packet of a2dp_vendor_opus_decoder.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to paired device escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

NVD Source

Risk Analysis

A heap buffer overflow in the A2DP Opus decoder can lead to privilege escalation from a paired device. The 9.8 CVSS score indicates this is a critical vulnerability that does not require user interaction.

There is no known public exploit, and it is not in the KEV catalog. The vulnerability is remotely exploitable with low complexity.

Recommended Action

Apply the latest security updates provided by Google for Android 14.

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-2023-40078 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.