# CVE-2020-3703: Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music

> Attackers can cause buffer over-reads in Bluetooth firmware via malformed opcodes, leading to crashes or data exposure on affected Qualcomm devices.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Nov 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-3j9x-r2wg-gfhv

## What is CVE-2020-3703?

CVE-2020-3703 is a critical memory corruption vulnerability in Qualcomm Apq8053 Firmware, published on 2 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

u'Buffer over-read issue in Bluetooth peripheral firmware due to lack of check for invalid opcode and length of opcode received from central device(This CVE is equivalent to Link Layer Length Overfow issue (CVE-2019-16336,CVE-2019-17519) and Silent Length Overflow issue(CVE-2019-17518) mentioned in sweyntooth paper)' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music in APQ8053, APQ8076, AR9344, Bitra, Kamorta, MDM9206, MDM9207C, MDM9607, MSM8905, MSM8917, MSM8937, MSM8940, MSM8953, Nicobar, QCA6174A, QCA9377, QCM2150, QCM6125, QCS404, QCS405, QCS605, QCS610, QM215, Rennell, SC8180X, SDM429, SDM439, SDM450, SDM630, SDM632, SDM636, SDM660, SDM670, SDM710, SDM845, SDX20, SDX24, SM6150, SM7150, SM8150, SXR1130

Weakness: CWE-20 (Improper Input Validation), CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2020-3703?

It affects 41 products.


Products: Qualcomm Apq8053 Firmware, Qualcomm Apq8076 Firmware, Qualcomm Ar9344 Firmware, Qualcomm Bitra Firmware, Qualcomm Kamorta Firmware, Qualcomm Mdm9206 Firmware, Qualcomm Mdm9207c Firmware, Qualcomm Mdm9607 Firmware, Qualcomm Msm8905 Firmware, Qualcomm Msm8917 Firmware, Qualcomm Msm8937 Firmware, Qualcomm Msm8940 Firmware, Qualcomm Msm8953 Firmware, Qualcomm Nicobar Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca9377 Firmware, Qualcomm Qcm2150 Firmware, Qualcomm Qcm6125 Firmware, Qualcomm Qcs404 Firmware, Qualcomm Qcs405 Firmware and 21 more.

## How do I fix CVE-2020-3703?

No fix has been published for CVE-2020-3703 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3703 being exploited?

There is no known exploitation of CVE-2020-3703 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Apq8053 Firmware

- [CVE-2022-22071](https://insights.sbomify.com/CVE-2022-22071/): Qualcomm Multiple Chipsets Use-After-Free (high 8.4, exploited in the wild)
- [CVE-2020-11153](https://insights.sbomify.com/CVE-2020-11153/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile (critical 9.8)
- [CVE-2019-14080](https://insights.sbomify.com/CVE-2019-14080/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables (critical 9.8)
- [CVE-2020-3628](https://insights.sbomify.com/CVE-2020-3628/): Information disclosure in Snapdragon Consumer IOT, Snapdragon Mobile (critical 9.8)
- [CVE-2019-14131](https://insights.sbomify.com/CVE-2019-14131/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3703 and fix it if it is affected.

What it is: CVE-2020-3703 is a critical memory corruption vulnerability in Qualcomm Apq8053 Firmware, published on 2 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-3703 in the wild and no public exploit code.

Affected product: Qualcomm Apq8053 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-2020-3703/ (Markdown: https://insights.sbomify.com/CVE-2020-3703/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3703
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3703
- OSV: https://osv.dev/vulnerability/CVE-2020-3703

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-3703/
Summaries are generated and may contain mistakes; the official description above is the record.