CVE-2026-93015

Summary

BlueKitchen BTstack through 1.8.2 fails to validate the peer-reported endpoint count against table bounds in A2DP stream endpoint discovery. A bonded peer can send an AVDTP DISCOVER response with more endpoints than the fixed table holds, causing out-of-bounds writes that corrupt adjacent static objects and crash the process or sever event delivery.

Affected Software

Weaknesses

• CWE-787: Out-of-bounds Write
• CWE-1284: Improper Validation of Specified Quantity in Input

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/bluekitchen/btstack/commit/fc208fcce056d4e0a5bb916abc90e83a383e1cdf
• https://github.com/bluekitchen/btstack/blob/v1.8.2/src/classic/a2dp.c#L568
• https://github.com/bluekitchen/btstack/blob/v1.8.2/src/classic/avdtp.c#L1703
• https://github.com/bluekitchen/btstack
• https://www.vulncheck.com/advisories/bluekitchen-btstack-through-1.8.2-a2dp-sep-discovery-out-of-bounds-write

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