# CVE-2020-3653: Memory corruption in Snapdragon Compute, Snapdragon Connectivity

> A buffer over-read in the Windows WLAN driver allows attackers to cause denial of service or disclose sensitive information via crafted user-space input.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 16 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-x9pc-2xp2-2gh9

## What is CVE-2020-3653?

CVE-2020-3653 is a critical memory corruption vulnerability in Qualcomm Msm8998 Firmware, published on 16 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Possible buffer over-read in windows wlan driver function due to lack of check of length of variable received from userspace in Snapdragon Compute, Snapdragon Connectivity in MSM8998, QCA6390, SC7180, SC8180X, SDM850

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

## Which versions are affected by CVE-2020-3653?

It affects 5 products.


Products: Qualcomm Msm8998 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Sc7180 Firmware, Qualcomm Sc8180x Firmware, Qualcomm Sdm850 Firmware.

## How do I fix CVE-2020-3653?

No fix has been published for CVE-2020-3653 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3653 being exploited?

There is no known exploitation of CVE-2020-3653 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Msm8998 Firmware

- [CVE-2020-3652](https://insights.sbomify.com/CVE-2020-3652/): Memory corruption in Snapdragon Compute, Snapdragon Connectivity (critical 9.1)
- [CVE-2020-11133](https://insights.sbomify.com/CVE-2020-11133/): Memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3653 and fix it if it is affected.

What it is: CVE-2020-3653 is a critical memory corruption vulnerability in Qualcomm Msm8998 Firmware, published on 16 Apr 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-2020-3653 in the wild and no public exploit code.

Affected product: Qualcomm Msm8998 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-2020-3653/ (Markdown: https://insights.sbomify.com/CVE-2020-3653/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3653
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3653
- OSV: https://osv.dev/vulnerability/CVE-2020-3653

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-3653/
Summaries are generated and may contain mistakes; the official description above is the record.