# CVE-2021-30329: Denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

> Improper validation of TCI configuration in Qualcomm Snapdragon firmware can cause an assertion failure, leading to a denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:** 1 Apr 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-xr2g-wg2c-hrx6

## What is CVE-2021-30329?

CVE-2021-30329 is a high-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 1 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Possible assertion due to improper validation of TCI configuration in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

Weakness: CWE-617 (Reachable Assertion)

## Which versions are affected by CVE-2021-30329?

It affects 53 products.


Products: Qualcomm Ar8035 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6426 Firmware, Qualcomm Qca6436 Firmware, Qualcomm Qca6574a Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca6595au Firmware, Qualcomm Qca6696 Firmware, Qualcomm Qca8081 Firmware, Qualcomm Qca8337 Firmware, Qualcomm Qcm6490 Firmware, Qualcomm Qcs6490 Firmware, Qualcomm Qcx315 Firmware, Qualcomm Sa515m Firmware, Qualcomm Sd480 Firmware, Qualcomm Sd690 5g Firmware, Qualcomm Sd750g Firmware, Qualcomm Sd765 Firmware, Qualcomm Sd765g Firmware and 33 more.

## How do I fix CVE-2021-30329?

No fix has been published for CVE-2021-30329 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30329 being exploited?

There is no known exploitation of CVE-2021-30329 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Ar8035 Firmware

- [CVE-2023-33106](https://insights.sbomify.com/CVE-2023-33106/): Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset (high 8.4, exploited in the wild)
- [CVE-2024-45569](https://insights.sbomify.com/CVE-2024-45569/): Improper Validation of Array Index in WLAN Host Communication (critical 9.8)
- [CVE-2024-21473](https://insights.sbomify.com/CVE-2024-21473/): Improper Input Validation in WIN SON (critical 9.8)
- [CVE-2023-28582](https://insights.sbomify.com/CVE-2023-28582/): Buffer Copy Without Checking Size of Input in Data Modem (critical 9.8)
- [CVE-2023-43552](https://insights.sbomify.com/CVE-2023-43552/): Use After Free in WLAN Host Communication (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30329 and fix it if it is affected.

What it is: CVE-2021-30329 is a high-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 1 Apr 2022. 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-2021-30329 in the wild and no public exploit code.

Affected product: Qualcomm Ar8035 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-2021-30329/ (Markdown: https://insights.sbomify.com/CVE-2021-30329/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30329
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30329
- OSV: https://osv.dev/vulnerability/CVE-2021-30329

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30329/
Summaries are generated and may contain mistakes; the official description above is the record.