# CVE-2026-25276: Improper Validation of Array Index in Secure Processor

> Missing bounds check in Qualcomm Snapdragon Secure Processor allows memory corruption, potentially enabling code execution or privilege escalation.

- **Severity:** High 8.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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:** 1 Jun 2026
- **Updated:** 3 Jun 2026
- **Also known as:** GHSA-c5pf-h876-qpm9

## What is CVE-2026-25276?

CVE-2026-25276 is a high-severity memory corruption vulnerability in Qualcomm Fastconnect 6700 Firmware, published on 1 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption while using Strongbox due to missing bounds check.

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

## Which versions are affected by CVE-2026-25276?

It affects 57 products.


Products: Qualcomm Cq8750m Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm G3x Gen 2 Firmware, Qualcomm Pandeiro Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6698au Firmware, Qualcomm Qca6797aq Firmware, Qualcomm Qcm5430 Firmware, Qualcomm Qcm6490 Firmware, Qualcomm Qcm8838 Firmware, Qualcomm Qcn9011 Firmware, Qualcomm Qcn9012 Firmware, Qualcomm Qcs8550 Firmware, Qualcomm Sd865 5g Firmware, Qualcomm Sdr753 Firmware, Qualcomm Sm8550p Firmware, Qualcomm Sm8650q Firmware and 37 more.

## How do I fix CVE-2026-25276?

No fix has been published for CVE-2026-25276 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-25276 being exploited?

There is no known exploitation of CVE-2026-25276 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Fastconnect 6700 Firmware

- [CVE-2026-25277](https://insights.sbomify.com/CVE-2026-25277/): Buffer Copy Without Checking Size of Input in Secure Processor (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25276 and fix it if it is affected.

What it is: CVE-2026-25276 is a high-severity memory corruption vulnerability in Qualcomm Fastconnect 6700 Firmware, published on 1 Jun 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-2026-25276 in the wild and no public exploit code.

Affected product: Qualcomm Fastconnect 6700 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-2026-25276/ (Markdown: https://insights.sbomify.com/CVE-2026-25276/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25276
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25276
- OSV: https://osv.dev/vulnerability/CVE-2026-25276

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25276/
Summaries are generated and may contain mistakes; the official description above is the record.