# CVE-2026-90503: Chengdu Qilu Technology Ludashi ComputerZ_x64.sys sub_11008 information disclosure

> Local attackers can exploit a flaw in the Ludashi ComputerZ_x64.sys driver to disclose sensitive information via manipulated physical address arguments.

- **Severity:** Medium 4.6 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Sep 2026
- **Updated:** 15 Sep 2026
- **Also known as:** GHSA-g88r-c893-696x

## What is CVE-2026-90503?

CVE-2026-90503 is a medium-severity vulnerability in Chengdu Qilu Technology Ludashi, published on 13 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A flaw has been found in Chengdu Qilu Technology Ludashi 6.1026.4715.714. The affected element is the function sub_11008 in the library ComputerZ_x64.sys. Executing a manipulation of the argument PhysicalAddress can lead to information disclosure. The attack needs to be launched locally. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-284 (Improper Access Control), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-90503?


## How do I fix CVE-2026-90503?

No fix has been published for CVE-2026-90503 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-90503 being exploited?

There is no known exploitation of CVE-2026-90503 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-90503 and fix it if it is affected.

What it is: CVE-2026-90503 is a medium-severity vulnerability in Chengdu Qilu Technology Ludashi, published on 13 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-2026-90503 in the wild and no public exploit code.

Affected product: Chengdu Qilu Technology Ludashi. 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-2026-90503/ (Markdown: https://insights.sbomify.com/CVE-2026-90503/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-90503
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-90503
- OSV: https://osv.dev/vulnerability/CVE-2026-90503

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-90503/
Summaries are generated and may contain mistakes; the official description above is the record.