# CVE-2025-21445: Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Data HLOS - QX

> A buffer overflow in Qualcomm Snapdragon firmware allows attackers to corrupt memory, potentially leading to code execution or privilege escalation.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 8 Jul 2025
- **Updated:** 8 Jul 2025
- **Also known as:** GHSA-4pxr-jjw5-gwm3

## What is CVE-2025-21445?

CVE-2025-21445 is a high-severity memory corruption vulnerability in Qualcomm Qam8255p Firmware, published on 8 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption while copying the result to the transmission queue which is shared between the virtual machine and the host.

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

## Which versions are affected by CVE-2025-21445?

It affects 27 products.


Products: Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qam8620p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qamsrv1h Firmware, Qualcomm Qamsrv1m Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca6595 Firmware, Qualcomm Qca6595au Firmware, Qualcomm Qca6688aq Firmware, Qualcomm Qca6696 Firmware, Qualcomm Qca6698aq Firmware, Qualcomm Qca6797aq Firmware, Qualcomm Sa7255p Firmware, Qualcomm Sa7775p Firmware, Qualcomm Sa8255p Firmware, Qualcomm Sa8295p Firmware, Qualcomm Sa8540p Firmware, Qualcomm Sa8620p Firmware and 7 more.

## How do I fix CVE-2025-21445?

No fix has been published for CVE-2025-21445 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-21445 being exploited?

There is no known exploitation of CVE-2025-21445 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Qam8255p Firmware

- [CVE-2025-47372](https://insights.sbomify.com/CVE-2025-47372/): Buffer Copy Without Checking Size of Input in Boot (critical 9.0)
- [CVE-2023-43517](https://insights.sbomify.com/CVE-2023-43517/): Improper Access Control in Automotive Multimedia (high 8.4)
- [CVE-2023-33108](https://insights.sbomify.com/CVE-2023-33108/): Use After Free in Graphics (high 8.4)
- [CVE-2023-33074](https://insights.sbomify.com/CVE-2023-33074/): Use After Free in Audio (high 8.4)
- [CVE-2025-47357](https://insights.sbomify.com/CVE-2025-47357/): Missing Authentication for Critical Function in SMSS (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-21445 and fix it if it is affected.

What it is: CVE-2025-21445 is a high-severity memory corruption vulnerability in Qualcomm Qam8255p Firmware, published on 8 Jul 2025. 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-2025-21445 in the wild and no public exploit code.

Affected product: Qualcomm Qam8255p 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-2025-21445/ (Markdown: https://insights.sbomify.com/CVE-2025-21445/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-21445
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-21445
- OSV: https://osv.dev/vulnerability/CVE-2025-21445

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-21445/
Summaries are generated and may contain mistakes; the official description above is the record.