# CVE-2020-3674: Information disclosure in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

> Improper kernel-to-userspace data transfer in Qualcomm Snapdragon chipsets allows attackers to leak sensitive information from kernel memory.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 9 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-87g6-m2cw-w39m

## What is CVE-2020-3674?

CVE-2020-3674 is a medium-severity vulnerability in Qualcomm Nicobar Firmware, published on 9 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Information can leak into userspace due to improper transfer of data from kernel to userspace in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in Nicobar, QCS405, Saipan, SC8180X, SDX55, SM8150, SM8250, SXR2130

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2020-3674?

It affects 8 products.


Products: Qualcomm Nicobar Firmware, Qualcomm Qcs405 Firmware, Qualcomm Saipan Firmware, Qualcomm Sc8180x Firmware, Qualcomm Sdx55 Firmware, Qualcomm Sm8150 Firmware, Qualcomm Sm8250 Firmware, Qualcomm Sxr2130 Firmware.

## How do I fix CVE-2020-3674?

No fix has been published for CVE-2020-3674 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3674 being exploited?

There is no known exploitation of CVE-2020-3674 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Nicobar Firmware

- [CVE-2019-14014](https://insights.sbomify.com/CVE-2019-14014/): Memory corruption in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile (critical 9.8)
- [CVE-2019-10621](https://insights.sbomify.com/CVE-2019-10621/): Use after free in Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3674 and fix it if it is affected.

What it is: CVE-2020-3674 is a medium-severity vulnerability in Qualcomm Nicobar Firmware, published on 9 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-2020-3674 in the wild and no public exploit code.

Affected product: Qualcomm Nicobar 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-2020-3674/ (Markdown: https://insights.sbomify.com/CVE-2020-3674/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3674
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3674
- OSV: https://osv.dev/vulnerability/CVE-2020-3674

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-3674/
Summaries are generated and may contain mistakes; the official description above is the record.