# CVE-2021-1909: Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

> A buffer overflow in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code via unvalidated parameters in trusted applications.

- **Severity:** High 7.3 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Sep 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-hpj4-57qp-2v2m

## What is CVE-2021-1909?

CVE-2021-1909 is a high-severity memory corruption vulnerability in Qualcomm Apq8009 Firmware, published on 9 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Buffer overflow occurs in trusted applications due to lack of length check of parameters in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2021-1909?

It affects 327 products.


Products: Qualcomm Apq8009 Firmware, Qualcomm Apq8009w Firmware, Qualcomm Apq8016 Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8037 Firmware, Qualcomm Apq8052 Firmware, Qualcomm Apq8053 Firmware, Qualcomm Apq8056 Firmware, Qualcomm Apq8062 Firmware, Qualcomm Apq8064 Firmware, Qualcomm Apq8064au Firmware, Qualcomm Apq8076 Firmware, Qualcomm Apq8084 Firmware, Qualcomm Apq8096au Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar3012 Firmware, Qualcomm Ar7420 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Ar9380 Firmware and 307 more.

## How do I fix CVE-2021-1909?

No fix has been published for CVE-2021-1909 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-1909 being exploited?

There is no known exploitation of CVE-2021-1909 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Apq8009 Firmware

- [CVE-2021-1905](https://insights.sbomify.com/CVE-2021-1905/): Qualcomm Multiple Chipsets Use-After-Free (high 8.4, exploited in the wild)
- [CVE-2020-11261](https://insights.sbomify.com/CVE-2020-11261/): Qualcomm Multiple Chipsets Improper Input Validation (high 7.8, exploited in the wild)
- [CVE-2021-1906](https://insights.sbomify.com/CVE-2021-1906/): Qualcomm Multiple Chipsets Detection of Error Condition Without Action (medium 6.2, exploited in the wild)
- [CVE-2022-40510](https://insights.sbomify.com/CVE-2022-40510/): Buffer copy without checking size of input in Audio. (critical 9.8)
- [CVE-2022-22088](https://insights.sbomify.com/CVE-2022-22088/): Integer Overflow to Buffer Overflow in Bluetooth HOST (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-1909 and fix it if it is affected.

What it is: CVE-2021-1909 is a high-severity memory corruption vulnerability in Qualcomm Apq8009 Firmware, published on 9 Sep 2021. 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-2021-1909 in the wild and no public exploit code.

Affected product: Qualcomm Apq8009 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-2021-1909/ (Markdown: https://insights.sbomify.com/CVE-2021-1909/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-1909
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1909
- OSV: https://osv.dev/vulnerability/CVE-2021-1909

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-1909/
Summaries are generated and may contain mistakes; the official description above is the record.