# CVE-2025-27052: Buffer Copy Without Checking Size of Input in Core Services

> Attacker can trigger memory corruption via Unix client packets, potentially leading to code execution or privilege escalation on Qualcomm Snapdragon devices.

- **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-46hr-m6rf-q355

## What is CVE-2025-27052?

CVE-2025-27052 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 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 processing data packets in diag received from Unix clients.

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

## Which versions are affected by CVE-2025-27052?

It affects 156 products.


Products: Qualcomm Ar8035 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Flight Rb5 5g Firmware, Qualcomm Mdm9628 Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qam8620p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qamsrv1h Firmware, Qualcomm Qamsrv1m Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6564a Firmware, Qualcomm Qca6564au Firmware, Qualcomm Qca6574 Firmware, Qualcomm Qca6574a Firmware and 136 more.

## How do I fix CVE-2025-27052?

No fix has been published for CVE-2025-27052 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-27052 being exploited?

There is no known exploitation of CVE-2025-27052 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-2025-27052 and fix it if it is affected.

What it is: CVE-2025-27052 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 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-2025-27052 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-2025-27052/ (Markdown: https://insights.sbomify.com/CVE-2025-27052/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-27052
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-27052
- OSV: https://osv.dev/vulnerability/CVE-2025-27052

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-27052/
Summaries are generated and may contain mistakes; the official description above is the record.