# CVE-2021-30493: Path traversal in n/a

> An attacker can write files to unintended directories via privileged system services in Razer Synapse 3 due to improper path handling.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:** 14 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-f98p-72x6-m9h5

## What is CVE-2021-30493?

CVE-2021-30493 is a medium-severity path traversal vulnerability in n/a, published on 14 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Multiple system services installed alongside the Razer Synapse 3 software suite perform privileged operations on entries within the ChromaBroadcast subkey. These privileged operations consist of file name concatenation of a runtime log file that is used to store runtime log information. In other words, an attacker can create a file in an unintended directory (with some limitations).

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2021-30493?

It affects 1 product.


Products: Razer Synapse.

## How do I fix CVE-2021-30493?

No fix has been published for CVE-2021-30493 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30493 being exploited?

There is no known exploitation of CVE-2021-30493 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-9769](https://insights.sbomify.com/CVE-2017-9769/): Privilege escalation in n/a (critical 9.8)
- [CVE-2017-11652](https://insights.sbomify.com/CVE-2017-11652/): Privilege escalation in n/a (high 8.4)
- [CVE-2025-9869](https://insights.sbomify.com/CVE-2025-9869/): Razer Synapse 3 Macro Module Link Following Local Privilege Escalation Vulnerability (high 7.8)
- [CVE-2025-9870](https://insights.sbomify.com/CVE-2025-9870/): Razer Synapse 3 RazerPhilipsHueUninstall Link Following Local Privilege Escalation Vulnerability (high 7.8)
- [CVE-2025-9871](https://insights.sbomify.com/CVE-2025-9871/): Razer Synapse 3 Chroma Connect Link Following Local Privilege Escalation Vulnerability (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30493 and fix it if it is affected.

What it is: CVE-2021-30493 is a medium-severity path traversal vulnerability in n/a, published on 14 Apr 2021. 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-2021-30493 in the wild and no public exploit code.

Affected product: n/a. 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-2021-30493/ (Markdown: https://insights.sbomify.com/CVE-2021-30493/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30493
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30493
- OSV: https://osv.dev/vulnerability/CVE-2021-30493

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30493/
Summaries are generated and may contain mistakes; the official description above is the record.