# CVE-2025-40889: Path traversal in Time Machine functionality in Guardian/CMC before 25.2.0

> An authenticated user can exploit path traversal in Time Machine functionality to modify or disrupt files in the /data folder.

- **Severity:** High 7.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Oct 2025
- **Updated:** 7 Oct 2025
- **Also known as:** GHSA-7fwq-7294-hc9q

## What is CVE-2025-40889?

CVE-2025-40889 is a high-severity path traversal vulnerability in Nozomi Networks CMC, published on 7 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A path traversal vulnerability was discovered in the Time Machine functionality due to missing validation of two input parameters. An authenticated user with limited privileges, by issuing a specifically-crafted request, can potentially alter the structure and content of files in the /data folder, and/or affect their availability.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-40889?

It affects 2 products.


Products: Nozominetworks Cmc, Nozominetworks Guardian.

## How do I fix CVE-2025-40889?

No fix has been published for CVE-2025-40889 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-40889 being exploited?

There is no known exploitation of CVE-2025-40889 in the wild and no public exploit code.

## Other vulnerabilities in Nozomi Networks CMC

- [CVE-2023-29245](https://insights.sbomify.com/CVE-2023-29245/): SQL Injection on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0 (critical 9.2)
- [CVE-2026-31984](https://insights.sbomify.com/CVE-2026-31984/): DoS through oversized audit log entries in Guardian/CMC before 26.2.0 (high 8.7)
- [CVE-2023-2567](https://insights.sbomify.com/CVE-2023-2567/): Authenticated SQL Injection on Query functionality in Guardian/CMC before 22.6.3 and 23.1.0 (high 8.7)
- [CVE-2023-22378](https://insights.sbomify.com/CVE-2023-22378/): Authenticated Blind SQL Injection on sorting in Guardian/CMC before 22.6.2 (high 8.7)
- [CVE-2023-23574](https://insights.sbomify.com/CVE-2023-23574/): Authenticated Blind SQL Injection on alerts count in Guardian/CMC before 22.6.2 (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-40889 and fix it if it is affected.

What it is: CVE-2025-40889 is a high-severity path traversal vulnerability in Nozomi Networks CMC, published on 7 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-40889 in the wild and no public exploit code.

Affected product: Nozomi Networks CMC. 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-2025-40889/ (Markdown: https://insights.sbomify.com/CVE-2025-40889/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-40889
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-40889
- OSV: https://osv.dev/vulnerability/CVE-2025-40889

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-40889/
Summaries are generated and may contain mistakes; the official description above is the record.