CVE-2023-40078

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-04 · updated 2026-06-17
Weakness: CWE-787

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.

Affected products

Android: 14.0

References

https://android.googlesource.com/platform/packages/modules/Bluetooth/+/6cdf985a664476659b84d8c74698cb3dfa28f82b
https://source.android.com/security/bulletin/2023-12-01
https://android.googlesource.com/platform/packages/modules/Bluetooth/+/6cdf985a664476659b84d8c74698cb3dfa28f82b
https://source.android.com/security/bulletin/2023-12-01

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