# CVE-2026-25278: Time-of-check Time-of-use (TOCTOU) Race Condition in Automotive Software platform based on QNX

> A race condition in Qualcomm Snapdragon automotive software allows memory corruption during I2C transfers, potentially enabling 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:** 17 Sep 2026
- **Updated:** 17 Sep 2026
- **Also known as:** GHSA-2mj3-25xq-r4px

## What is CVE-2026-25278?

CVE-2026-25278 is a high-severity vulnerability in Qualcomm Qam8255p Firmware, published on 17 Sep 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 I2C transfer requests due to a race condition between memory allocation and data copying.

Weakness: CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition)

## Which versions are affected by CVE-2026-25278?

It affects 29 products.


Products: Qualcomm Lemans Au Lgit Firmware, Qualcomm Lemansau Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qam8620p 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 Qca8695au Firmware, Qualcomm Sa6155p Firmware, Qualcomm Sa7255p Firmware, Qualcomm Sa7775p Firmware, Qualcomm Sa8155p Firmware, Qualcomm Sa8195p Firmware and 9 more.

## How do I fix CVE-2026-25278?

No fix has been published for CVE-2026-25278 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-25278 being exploited?

There is no known exploitation of CVE-2026-25278 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Qam8255p Firmware

- [CVE-2026-21366](https://insights.sbomify.com/CVE-2026-21366/): Integer Overflow or Wraparound in Data Network Stack & Connectivity (high 7.8)
- [CVE-2025-47381](https://insights.sbomify.com/CVE-2025-47381/): Use After Free in Automotive Audio (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25278 and fix it if it is affected.

What it is: CVE-2026-25278 is a high-severity vulnerability in Qualcomm Qam8255p Firmware, published on 17 Sep 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-2026-25278 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-2026-25278/ (Markdown: https://insights.sbomify.com/CVE-2026-25278/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25278
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25278
- OSV: https://osv.dev/vulnerability/CVE-2026-25278

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25278/
Summaries are generated and may contain mistakes; the official description above is the record.