# CVE-2020-3702: Information disclosure in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

> Attackers can disclose information over the air by exploiting improper Wi-Fi encryption in Qualcomm Snapdragon chipsets via timed traffic.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 Sep 2020
- **Updated:** 8 Oct 2026
- **Also known as:** DEBIAN-CVE-2020-3702, GHSA-h4q5-8rrj-hrj2, UBUNTU-CVE-2020-3702

## What is CVE-2020-3702?

CVE-2020-3702 is a medium-severity vulnerability in Debian Debian Linux, 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'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2020-3702?

It affects 13 products.


Products: Arista Access Point, Debian Debian Linux, Qualcomm Apq8053 Firmware, Qualcomm Ipq4019 Firmware, Qualcomm Ipq8064 Firmware, Qualcomm Msm8909w Firmware, Qualcomm Msm8996au Firmware, Qualcomm Qca9531 Firmware, Qualcomm Qcn5502 Firmware, Qualcomm Qcs405 Firmware, Qualcomm Sdx20 Firmware, Qualcomm Sm6150 Firmware, Qualcomm Sm7150 Firmware.

## How do I fix CVE-2020-3702?

Apply the vendor's patch.

## Is CVE-2020-3702 being exploited?

There is no known exploitation of CVE-2020-3702 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3702 and fix it if it is affected.

What it is: CVE-2020-3702 is a medium-severity vulnerability in Debian Debian Linux, 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-2020-3702 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2020-3702/ (Markdown: https://insights.sbomify.com/CVE-2020-3702/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3702
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3702
- OSV: https://osv.dev/vulnerability/CVE-2020-3702

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-3702/
Summaries are generated and may contain mistakes; the official description above is the record.