Critical severity · published Dec 4, 2023
CVE-2023-40078
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
9.8
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AN
Android · Google
14.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-40078
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-40078
Mailing List
https://android.googlesource.com/platform/packages/modules/Bluetooth/+/6cdf985a664476659b84d8c74698cb3dfa28f82b
Patch
https://source.android.com/security/bulletin/2023-12-01
More from Android
9.6
CVE-2020-16010
Google Chrome for Android UI Heap Buffer Overflow Vulnerability
8.8
CVE-2026-58704
Google Pixel Improper Authorization Vulnerability
8.8
CVE-2025-48543
Android Runtime Use-After-Free Vulnerability
8.4
CVE-2025-48595
Android Framework Integer Overflow Vulnerability
7.8
CVE-2025-48572
Android Framework Privilege Escalation Vulnerability