CVE-2025-58447

critical · 9.8

rAthena is an open-source cross-platform massively multiplayer online role playing game (MMORPG) server. Versions prior to commit 2f5248b have a heap-based buffer overflow in the login server, remote attacker to overwrite adjacent session fields by sending a crafted `CA_SSO_LOGIN_REQ` with an oversized token length. This leads to immediate denial of service (crash) and it is possible to achieve remote code execution via heap corruption. Commit 2f5248b fixes the issue.

9.8

CVSS

0.9%

EPSS (exploit prob.)

57th

EPSS percentile

2025-09-09

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-122CWE-787

Affected products

Vendor	Product	Affected versions
rathena	rathena	< 2025-09-06

Check a specific version with /api/v1/cve/match.

References

https://github.com/rathena/rathena/commit/2f5248b9cd9a8c6b42422ddecfc4cc2cd0e69e4b
https://github.com/rathena/rathena/security/advisories/GHSA-4p33-6xqr-cm6x

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-58447