# CVE-2020-3647: Memory corruption in Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

> A buffer overflow in the NPU debugfs node allows attackers to execute arbitrary code or escalate privileges on affected Qualcomm Snapdragon devices.

- **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:** 8 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-jrgp-f5cx-xhh6

## What is CVE-2020-3647?

CVE-2020-3647 is a high-severity memory corruption vulnerability in Qualcomm Mdm9607 Firmware, published on 8 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

u'Potential buffer overflow when accessing npu debugfs node "off"/"log" with large buffer size' in Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music in MDM9607, QCS405, SC8180X, SDX55, SM6150, SM7150, SM8150

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2020-3647?

It affects 7 products.


Products: Qualcomm Mdm9607 Firmware, Qualcomm Qcs405 Firmware, Qualcomm Sc8180x Firmware, Qualcomm Sdx55 Firmware, Qualcomm Sm6150 Firmware, Qualcomm Sm7150 Firmware, Qualcomm Sm8150 Firmware.

## How do I fix CVE-2020-3647?

No fix has been published for CVE-2020-3647 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3647 being exploited?

There is no known exploitation of CVE-2020-3647 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Mdm9607 Firmware

- [CVE-2019-10531](https://insights.sbomify.com/CVE-2019-10531/): Memory corruption in Snapdragon Auto, Snapdragon Mobile, Snapdragon Wearables (critical 9.8)
- [CVE-2019-2276](https://insights.sbomify.com/CVE-2019-2276/): Memory corruption in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Mobile, Snapdragon Voice & Music (critical 9.8)
- [CVE-2018-5915](https://insights.sbomify.com/CVE-2018-5915/): Denial of service in Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear (critical 9.8)
- [CVE-2015-9126](https://insights.sbomify.com/CVE-2015-9126/): Memory corruption in Snapdragon Mobile, Snapdragon Wear (critical 9.8)
- [CVE-2016-10479](https://insights.sbomify.com/CVE-2016-10479/): Memory corruption in Snapdragon Mobile (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3647 and fix it if it is affected.

What it is: CVE-2020-3647 is a high-severity memory corruption vulnerability in Qualcomm Mdm9607 Firmware, published on 8 Sep 2020. 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-2020-3647 in the wild and no public exploit code.

Affected product: Qualcomm Mdm9607 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-2020-3647/ (Markdown: https://insights.sbomify.com/CVE-2020-3647/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3647
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3647
- OSV: https://osv.dev/vulnerability/CVE-2020-3647

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-3647/
Summaries are generated and may contain mistakes; the official description above is the record.