Use After Free in Rathena
CVE-2025-62170
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.
Vulnerability class: Use-After-Free
EPSS: 0.003 (27.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Rathena — versions < af2f3ba33fc03dc6dd510f8cfe84cd9185af748d
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-62170?
- CVE-2025-62170 is a high-severity vulnerability in Rathena, classified under Use After Free. CVSS score: 7.5/10. Published 2025-10-13.
- How severe is CVE-2025-62170?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-62170 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.