# CVE-2021-35126: Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

> Attackers can exploit improper input validation in the DSP service to cause memory corruption, potentially leading to code execution or privilege escalation on Snapdragon devices.

- **Severity:** High 8.4 (`CVSS:3.1/AV:L/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Jun 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-h755-jwww-48xw

## What is CVE-2021-35126?

CVE-2021-35126 is a high-severity memory corruption vulnerability in Qualcomm Qam8295p 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

Memory corruption in DSP service due to improper validation of input parameters in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

Weakness: CWE-129 (Improper Validation of Array Index)

## Which versions are affected by CVE-2021-35126?

It affects 26 products.


Products: Qualcomm Qam8295p Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6696 Firmware, Qualcomm Qcm6490 Firmware, Qualcomm Qcs6490 Firmware, Qualcomm Sa8295p Firmware, Qualcomm Sd778g Firmware, Qualcomm Sd780g Firmware, Qualcomm Sd888 5g Firmware, Qualcomm Sd888 Firmware, Qualcomm Sd 8 Gen1 5g Firmware, Qualcomm Sd 8cx Gen3 Firmware, Qualcomm Sm7315 Firmware, Qualcomm Sm7325p Firmware, Qualcomm Wcd9370 Firmware, Qualcomm Wcd9375 Firmware, Qualcomm Wcd9380 Firmware, Qualcomm Wcd9385 Firmware, Qualcomm Wcn6740 Firmware, Qualcomm Wcn6750 Firmware and 6 more.

## How do I fix CVE-2021-35126?

No fix has been published for CVE-2021-35126 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-35126 being exploited?

There is no known exploitation of CVE-2021-35126 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Qam8295p Firmware

- [CVE-2023-33039](https://insights.sbomify.com/CVE-2023-33039/): Use After Free in Automotive Display (high 8.4)
- [CVE-2023-21642](https://insights.sbomify.com/CVE-2023-21642/): Improper Access Control in HAB Memory Management (high 8.4)
- [CVE-2022-40539](https://insights.sbomify.com/CVE-2022-40539/): Improper Validation of Array Index in Automotive Android OS (high 8.4)
- [CVE-2022-33274](https://insights.sbomify.com/CVE-2022-33274/): Improper validation of array index in Android Core (high 8.4)
- [CVE-2022-33300](https://insights.sbomify.com/CVE-2022-33300/): Improper input validation in Automotive Android OS (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-35126 and fix it if it is affected.

What it is: CVE-2021-35126 is a high-severity memory corruption vulnerability in Qualcomm Qam8295p 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-2021-35126 in the wild and no public exploit code.

Affected product: Qualcomm Qam8295p 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-2021-35126/ (Markdown: https://insights.sbomify.com/CVE-2021-35126/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-35126
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-35126
- OSV: https://osv.dev/vulnerability/CVE-2021-35126

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-35126/
Summaries are generated and may contain mistakes; the official description above is the record.