# CVE-2026-5397: Vulnerability Related to an Uncontrolled Search Path Element in a UPS Management Application

> Attackers can execute arbitrary code with administrator privileges by placing a malicious DLL in the application's installation directory.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:H/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:** 15 Apr 2026
- **Updated:** 15 Apr 2026
- **Also known as:** GHSA-wx9r-9hf2-wq9p

## What is CVE-2026-5397?

CVE-2026-5397 is a high-severity vulnerability in OMRON SOCIAL SOLUTIONS CO., Ltd. PowerAttendant Standard Edition, published on 15 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

It has been identified that a vulnerability (CWE-427) exists in the UPS (Uninterruptible Power Supply) management application, whereby improper permissions on the installation directory allow a malicious actor to place a DLL that is then executed with administrator privileges.

If a malicious DLL is placed in the installation directory of this product, there is a possibility that the malicious DLL may be executed by exploiting the product’s behavior of loading missing DLLs from the same directory as the executable during service startup.

Weakness: CWE-427 (Uncontrolled Search Path Element)

## Which versions are affected by CVE-2026-5397?


## How do I fix CVE-2026-5397?

No fix has been published for CVE-2026-5397 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5397 being exploited?

There is no known exploitation of CVE-2026-5397 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5397 and fix it if it is affected.

What it is: CVE-2026-5397 is a high-severity vulnerability in OMRON SOCIAL SOLUTIONS CO., Ltd. PowerAttendant Standard Edition, published on 15 Apr 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-2026-5397 in the wild and no public exploit code.

Affected product: OMRON SOCIAL SOLUTIONS CO., Ltd. PowerAttendant Standard Edition. 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-2026-5397/ (Markdown: https://insights.sbomify.com/CVE-2026-5397/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5397
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5397
- OSV: https://osv.dev/vulnerability/CVE-2026-5397

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5397/
Summaries are generated and may contain mistakes; the official description above is the record.