# CVE-2022-50689: Cobian Reflector 0.9.93 RC1 Local Denial of Service via Password Field

> Attackers can crash Cobian Reflector by pasting a large buffer into the password field during SFTP configuration, causing a denial of service.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Dec 2025
- **Updated:** 22 Dec 2025
- **Also known as:** GHSA-54rp-72w5-jjq7

## What is CVE-2022-50689?

CVE-2022-50689 is a medium-severity denial of service vulnerability in Cobiansoft Cobian Reflector, published on 22 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Cobian Reflector 0.9.93 RC1 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the password input field. Attackers can paste a large 8000-byte buffer into the password field to trigger an application crash during SFTP task configuration.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2022-50689?

It affects 1 product.


Products: Cobiansoft Reflector.

## How do I fix CVE-2022-50689?

No fix has been published for CVE-2022-50689 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-50689 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-50689 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-50689 and fix it if it is affected.

What it is: CVE-2022-50689 is a medium-severity denial of service vulnerability in Cobiansoft Cobian Reflector, published on 22 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-50689 exists.

Affected product: Cobiansoft Cobian Reflector. 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-2022-50689/ (Markdown: https://insights.sbomify.com/CVE-2022-50689/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-50689
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-50689
- OSV: https://osv.dev/vulnerability/CVE-2022-50689

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-50689/
Summaries are generated and may contain mistakes; the official description above is the record.