# CVE-2025-62170: rAthena map-server use-after-free vulnerability in RODEX

> An unauthenticated attacker can crash the rAthena map-server via a use-after-free flaw in RODEX, causing denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Oct 2025
- **Updated:** 27 Oct 2025
- **Also known as:** GHSA-9mj9-8vgv-r92j

## What is CVE-2025-62170?

CVE-2025-62170 is a high-severity use after free vulnerability in rathena, published on 13 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

rAthena is an open-source cross-platform MMORPG server. A use-after-free vulnerability exists in the RODEX functionality of rAthena's map-server in versions prior to commit af2f3ba. An unauthenticated attacker can exploit this vulnerability via a specific attacking scenario to cause a denial of service by crashing the map-server. This issue has been patched in commit af2f3ba. There are no known workarounds aside from manually applying the patch.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2025-62170?

It affects 1 product.


Products: Rathena Rathena.

## How do I fix CVE-2025-62170?

No fix has been published for CVE-2025-62170 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-62170 being exploited?

There is no known exploitation of CVE-2025-62170 in the wild and no public exploit code.

## Other vulnerabilities in rathena

- [CVE-2025-58447](https://insights.sbomify.com/CVE-2025-58447/): rAthena has heap-based buffer overflow in login server (critical 9.8)
- [CVE-2025-58448](https://insights.sbomify.com/CVE-2025-58448/): rAthena has SQL Injection in PartyBooking component via `WorldName` parameter. (critical 9.1)
- [CVE-2025-58750](https://insights.sbomify.com/CVE-2025-58750/): rAthena missing bound check in chclif_parse_moveCharSlot (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-62170 and fix it if it is affected.

What it is: CVE-2025-62170 is a high-severity use after free vulnerability in rathena, published on 13 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-62170 in the wild and no public exploit code.

Affected product: rathena. 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-2025-62170/ (Markdown: https://insights.sbomify.com/CVE-2025-62170/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62170
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62170
- OSV: https://osv.dev/vulnerability/CVE-2025-62170

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-62170/
Summaries are generated and may contain mistakes; the official description above is the record.