# CVE-2026-25302: Improper Verification of Cryptographic Signature in Boot

> Attackers can bypass signature checks to mount unsigned images, enabling code execution and privilege escalation on Qualcomm Snapdragon devices.

- **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:** 6 Oct 2026
- **Updated:** 6 Oct 2026
- **Also known as:** GHSA-5mfp-688h-g4r8

## What is CVE-2026-25302?

CVE-2026-25302 is a high-severity vulnerability in Qualcomm Ar8035 Firmware, published on 6 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Cryptographic Issue when processing non-ELF partitions, authentication and signature checks are bypassed, allowing unsigned or corrupted images to be mounted and processed.

Weakness: CWE-347 (Improper Verification of Cryptographic Signature)

## Which versions are affected by CVE-2026-25302?

It affects 292 products.


Products: Qualcomm Ar8035 Firmware, Qualcomm Cologne Firmware, Qualcomm Cq2390m Firmware, Qualcomm Cq2390s Firmware, Qualcomm Cq7790 Firmware, Qualcomm Cq7790m Firmware, Qualcomm Cq8725s Firmware, Qualcomm Cq8750m Firmware, Qualcomm Cq8845s Firmware, Qualcomm Cq8850ns Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Flight Rb5 5g Platform Firmware, Qualcomm Fsm20055 Firmware, Qualcomm Fsm200 Platform Firmware and 272 more.

## How do I fix CVE-2026-25302?

No fix has been published for CVE-2026-25302 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-25302 being exploited?

There is no known exploitation of CVE-2026-25302 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-2026-25302 and fix it if it is affected.

What it is: CVE-2026-25302 is a high-severity vulnerability in Qualcomm Ar8035 Firmware, published on 6 Oct 2026. 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-2026-25302 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-2026-25302/ (Markdown: https://insights.sbomify.com/CVE-2026-25302/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25302
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25302
- OSV: https://osv.dev/vulnerability/CVE-2026-25302

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25302/
Summaries are generated and may contain mistakes; the official description above is the record.