# CVE-2020-3675: Integer overflow in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

> An integer underflow in Qualcomm Snapdragon firmware allows attackers to cause denial of service or execute arbitrary code via crafted network packets.

- **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:** 8 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-rq9v-5pfm-x4vf

## What is CVE-2020-3675?

CVE-2020-3675 is a critical vulnerability in Qualcomm Ipq5018 Firmware, published on 8 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

u'Potential integer underflow while parsing Service Info and IPv6 link-local TLVs that comes as part of NDPE attribute' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in IPQ5018, IPQ6018, IPQ8074, Kamorta, Nicobar, QCA6390, QCN7605, QCS404, QCS405, Rennell, SA415M, Saipan, SC7180, SC8180X, SDX55, SM6150, SM7150, SM8150, SM8250

Weakness: CWE-191 (Integer Underflow (Wrap or Wraparound))

## Which versions are affected by CVE-2020-3675?

It affects 19 products.


Products: Qualcomm Ipq5018 Firmware, Qualcomm Ipq6018 Firmware, Qualcomm Ipq8074 Firmware, Qualcomm Kamorta Firmware, Qualcomm Nicobar Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qcn7605 Firmware, Qualcomm Qcs404 Firmware, Qualcomm Qcs405 Firmware, Qualcomm Rennell Firmware, Qualcomm Sa415m Firmware, Qualcomm Saipan Firmware, Qualcomm Sc7180 Firmware, Qualcomm Sc8180x Firmware, Qualcomm Sdx55 Firmware, Qualcomm Sm6150 Firmware, Qualcomm Sm7150 Firmware, Qualcomm Sm8150 Firmware, Qualcomm Sm8250 Firmware.

## How do I fix CVE-2020-3675?

No fix has been published for CVE-2020-3675 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3675 being exploited?

There is no known exploitation of CVE-2020-3675 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3675 and fix it if it is affected.

What it is: CVE-2020-3675 is a critical vulnerability in Qualcomm Ipq5018 Firmware, published on 8 Sep 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-2020-3675 in the wild and no public exploit code.

Affected product: Qualcomm Ipq5018 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-2020-3675/ (Markdown: https://insights.sbomify.com/CVE-2020-3675/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3675
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3675
- OSV: https://osv.dev/vulnerability/CVE-2020-3675

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-3675/
Summaries are generated and may contain mistakes; the official description above is the record.