# CVE-2026-25268: Stack-based Buffer Overflow in WLAN Host

> A stack-based buffer overflow in Qualcomm Snapdragon WLAN firmware allows attackers to execute arbitrary code or cause denial of service via invalid HT40 channel layouts.

- **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:** 6 Jul 2026
- **Updated:** 7 Jul 2026
- **Also known as:** GHSA-685v-jj9g-mfg9

## What is CVE-2026-25268?

CVE-2026-25268 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 Firmware, published on 6 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory Corruption when processing invalid HT40 channel layouts during dynamic channel switching operations.

Weakness: CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2026-25268?

It affects 128 products.


Products: Qualcomm 5g Fixed Wireless Access Platform Firmware, Qualcomm Ar8035 Firmware, Qualcomm Cq7790 Firmware, Qualcomm Cq8725s Firmware, Qualcomm Csr8811 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Fwa Gen 3 Ultra Firmware, Qualcomm Fwa Gen 5 Elite Firmware, Qualcomm Immersive Home 214 Platform Firmware, Qualcomm Immersive Home 216 Platform Firmware, Qualcomm Immersive Home 316 Platform Firmware, Qualcomm Immersive Home 318 Platform Firmware, Qualcomm Immersive Home 3210 Platform Firmware, Qualcomm Immersive Home 326 Platform Firmware, Qualcomm Ipq5010 Firmware, Qualcomm Ipq5028 Firmware, Qualcomm Ipq5300 Firmware, Qualcomm Ipq5302 Firmware and 108 more.

## How do I fix CVE-2026-25268?

No fix has been published for CVE-2026-25268 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-25268 being exploited?

There is no known exploitation of CVE-2026-25268 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Ar8035 Firmware

- [CVE-2026-21385](https://insights.sbomify.com/CVE-2026-21385/): Qualcomm Multiple Chipsets Memory Corruption (high 7.8, exploited in the wild)
- [CVE-2025-47392](https://insights.sbomify.com/CVE-2025-47392/): Integer Overflow or Wraparound in GPS (high 8.8)
- [CVE-2026-25267](https://insights.sbomify.com/CVE-2026-25267/): Missing Authorization in Core (high 7.8)
- [CVE-2025-47379](https://insights.sbomify.com/CVE-2025-47379/): Use After Free in Automotive Audio (high 7.8)
- [CVE-2026-25275](https://insights.sbomify.com/CVE-2026-25275/): Buffer Over-read in WLAN Firmware (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25268 and fix it if it is affected.

What it is: CVE-2026-25268 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 Firmware, published on 6 Jul 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-2026-25268 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-2026-25268/ (Markdown: https://insights.sbomify.com/CVE-2026-25268/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25268
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25268
- OSV: https://osv.dev/vulnerability/CVE-2026-25268

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25268/
Summaries are generated and may contain mistakes; the official description above is the record.