# CVE-2025-47394: Buffer Copy Without Checking Size of Input in DSP Service

> Attacker can exploit buffer overflow in DSP service to execute arbitrary code or escalate privileges on Android devices using Qualcomm Snapdragon chips.

- **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:** Yes
- **Published:** 6 Jan 2026
- **Updated:** 7 Jan 2026
- **Also known as:** 4202921, A-449732573, ASB-A-449732573, GHSA-5w7p-x2hw-f4q6

## What is CVE-2025-47394?

CVE-2025-47394 is a high-severity memory corruption vulnerability in Qualcomm Fastconnect 6200 Firmware, published on 6 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption when copying overlapping buffers during memory operations due to incorrect offset calculations.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2025-47394?

It affects 45 products.


Products: Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qcs610 Firmware, Qualcomm Qmp1000 Firmware, Qualcomm Sg6150 Firmware, Qualcomm Sg6150p Firmware, Qualcomm Sm6475 Firmware, Qualcomm Sm7435 Firmware, Qualcomm Sm8735 Firmware, Qualcomm Sm8750 Firmware, Qualcomm Sm8750p Firmware, Qualcomm Snapdragon 4 Gen 2 Mobile Platform Firmware, Qualcomm Snapdragon 6 Gen 1 Mobile Platform Firmware, Qualcomm Snapdragon W5\+ Gen 1 Wearable Platform Firmware, Qualcomm Sw5100 Firmware, Qualcomm Sw5100p Firmware, Qualcomm Sxr2330p Firmware, Qualcomm Sxr2350p Firmware and 25 more.

## How do I fix CVE-2025-47394?

Apply the vendor's patch.

## Is CVE-2025-47394 being exploited?

There is no known exploitation of CVE-2025-47394 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Fastconnect 6200 Firmware

- [CVE-2024-33035](https://insights.sbomify.com/CVE-2024-33035/): Integer Overflow or Wraparound in Display (high 8.4)
- [CVE-2024-23381](https://insights.sbomify.com/CVE-2024-23381/): Use After Free in Graphics Linux (high 8.4)
- [CVE-2024-23382](https://insights.sbomify.com/CVE-2024-23382/): Use After Free in Graphics Linux (high 8.4)
- [CVE-2024-23383](https://insights.sbomify.com/CVE-2024-23383/): Use After Free in Graphics Linux (high 8.4)
- [CVE-2024-23384](https://insights.sbomify.com/CVE-2024-23384/): Use After Free in Graphics Linux (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-47394 and fix it if it is affected.

What it is: CVE-2025-47394 is a high-severity memory corruption vulnerability in Qualcomm Fastconnect 6200 Firmware, published on 6 Jan 2026. 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-2025-47394 in the wild and no public exploit code.

Affected product: Qualcomm Fastconnect 6200 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-2025-47394/ (Markdown: https://insights.sbomify.com/CVE-2025-47394/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-47394
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-47394
- OSV: https://osv.dev/vulnerability/CVE-2025-47394

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-47394/
Summaries are generated and may contain mistakes; the official description above is the record.