# CVE-2023-0887: phjounin TFTPD64-SE tftpd64_svc.exe unquoted search path

> Local attackers can exploit an unquoted search path in the service executable to achieve privilege escalation.

- **Severity:** High 7.0 (`CVSS:3.1/AV:L/AC:H/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 Feb 2023
- **Updated:** 12 Mar 2025
- **Also known as:** GHSA-j9g7-7qq4-88m2

## What is CVE-2023-0887?

CVE-2023-0887 is a high-severity vulnerability in phjounin TFTPD64-SE, published on 17 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability was found in phjounin TFTPD64-SE 4.64 and classified as critical. This issue affects some unknown processing of the file tftpd64_svc.exe. The manipulation leads to unquoted search path. An attack has to be approached locally. The complexity of an attack is rather high. The exploitation is known to be difficult. The associated identifier of this vulnerability is VDB-221351.

Weakness: CWE-428 (Unquoted Search Path or Element)

## Which versions are affected by CVE-2023-0887?

It affects 1 product.


Products: Tftpd64 Project Tftpd64.

## How do I fix CVE-2023-0887?

No fix has been published for CVE-2023-0887 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-0887 being exploited?

There is no known exploitation of CVE-2023-0887 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-0887 and fix it if it is affected.

What it is: CVE-2023-0887 is a high-severity vulnerability in phjounin TFTPD64-SE, published on 17 Feb 2023. 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-2023-0887 in the wild and no public exploit code.

Affected product: phjounin TFTPD64-SE. 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-2023-0887/ (Markdown: https://insights.sbomify.com/CVE-2023-0887/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-0887
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-0887
- OSV: https://osv.dev/vulnerability/CVE-2023-0887

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-0887/
Summaries are generated and may contain mistakes; the official description above is the record.