# CVE-2021-30346: Security feature bypass in Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

> Improper SMMU configuration allows RPM secure stream to access any secure resource, bypassing security controls in Qualcomm Snapdragon devices.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Jun 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-6frx-xq63-r4jc

## What is CVE-2021-30346?

CVE-2021-30346 is a medium-severity vulnerability in Qualcomm Ar8035 Firmware, published on 14 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

RPM secure Stream can access any secure resource due to improper SMMU configuration in Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

## Which versions are affected by CVE-2021-30346?

It affects 28 products.


Products: Qualcomm Ar8035 Firmware, Qualcomm Qca9984 Firmware, Qualcomm Qcm2290 Firmware, Qualcomm Qcm4290 Firmware, Qualcomm Qcs2290 Firmware, Qualcomm Qcs405 Firmware, Qualcomm Qcs4290 Firmware, Qualcomm Sd460 Firmware, Qualcomm Sd480 Firmware, Qualcomm Sd662 Firmware, Qualcomm Sd680 Firmware, Qualcomm Sm6375 Firmware, Qualcomm Sw5100 Firmware, Qualcomm Sw5100p Firmware, Qualcomm Wcd9370 Firmware, Qualcomm Wcd9375 Firmware, Qualcomm Wcd9385 Firmware, Qualcomm Wcn3910 Firmware, Qualcomm Wcn3950 Firmware, Qualcomm Wcn3980 Firmware and 8 more.

## How do I fix CVE-2021-30346?

No fix has been published for CVE-2021-30346 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30346 being exploited?

There is no known exploitation of CVE-2021-30346 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-2021-30346 and fix it if it is affected.

What it is: CVE-2021-30346 is a medium-severity vulnerability in Qualcomm Ar8035 Firmware, published on 14 Jun 2022. 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-2021-30346 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-2021-30346/ (Markdown: https://insights.sbomify.com/CVE-2021-30346/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30346
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30346
- OSV: https://osv.dev/vulnerability/CVE-2021-30346

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30346/
Summaries are generated and may contain mistakes; the official description above is the record.