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

> A use-after-free flaw in Qualcomm Snapdragon Bluetooth firmware allows attackers to execute arbitrary code or escalate privileges via A2DP commands.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Aug 2025
- **Updated:** 6 Aug 2025
- **Also known as:** GHSA-v66r-m998-m46p

## What is CVE-2025-21474?

CVE-2025-21474 is a high-severity use after free vulnerability in Qualcomm Fastconnect 6800 Firmware, published on 6 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption while processing commands from A2dp sink command queue.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2025-21474?

It affects 45 products.


Products: Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6426 Firmware, Qualcomm Qca6436 Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca6696 Firmware, Qualcomm Qcn9074 Firmware, Qualcomm Qcs410 Firmware, Qualcomm Qcs610 Firmware, Qualcomm Sa6145p Firmware, Qualcomm Sa6150p Firmware, Qualcomm Sa6155p Firmware, Qualcomm Sa8145p Firmware, Qualcomm Sa8150p Firmware, Qualcomm Sa8155p Firmware, Qualcomm Sa8195p Firmware, Qualcomm Sa8295p Firmware and 25 more.

## How do I fix CVE-2025-21474?

No fix has been published for CVE-2025-21474 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-21474 being exploited?

There is no known exploitation of CVE-2025-21474 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Fastconnect 6800 Firmware

- [CVE-2023-28581](https://insights.sbomify.com/CVE-2023-28581/): Improper Restriction of Operations within the Bounds of a Memory Buffer in WLAN Firmware (critical 9.8)
- [CVE-2025-27037](https://insights.sbomify.com/CVE-2025-27037/): Use After Free in Camera Driver (high 7.8)
- [CVE-2025-21455](https://insights.sbomify.com/CVE-2025-21455/): Time-of-check Time-of-use (TOCTOU) Race Condition in Camera_Linux (high 7.8)
- [CVE-2024-45566](https://insights.sbomify.com/CVE-2024-45566/): Use After Free in Camera Driver (high 7.8)
- [CVE-2024-33069](https://insights.sbomify.com/CVE-2024-33069/): Use After Free in WLAN Host (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-21474 and fix it if it is affected.

What it is: CVE-2025-21474 is a high-severity use after free vulnerability in Qualcomm Fastconnect 6800 Firmware, published on 6 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-21474 in the wild and no public exploit code.

Affected product: Qualcomm Fastconnect 6800 Firmware. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-21474/ (Markdown: https://insights.sbomify.com/CVE-2025-21474/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-21474
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-21474
- OSV: https://osv.dev/vulnerability/CVE-2025-21474

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-21474/
Summaries are generated and may contain mistakes; the official description above is the record.