CVE-2025-62170: rAthena is an open-source cross-platform MMORPG server

Q: How do I fix CVE-2025-62170?

rathena: upgrade to 2025-10-12. Exact commands for each OS are on this page.

Q: Is CVE-2025-62170 being exploited?

CVE-2025-62170 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-62170 affect?

CVE-2025-62170 affects rathena. Severity is high (CVSS 7.5). 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

Q: How urgent is CVE-2025-62170?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.5REMOTEUPGRADE

CVE-2025-62170 is a high-severity flaw (CVSS 7.5) affecting rathena. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-416
Published	2025-10-13
Last modified	2026-10-19

Publisher (CNA): GitHub, Inc. · Vendor: rathena

Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-13 18:15 UTCPublished CVE record published
2026-10-19 16:10 UTCUpdated Record last modified

rathena rathena UPGRADE

Affected: < 2025-10-12

Fixed in: 2025-10-12

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rathena || rpm -q rathena || rathena --version

2. UPGRADE to 2025-10-12 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rathena

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rathena

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-62170?

rathena: upgrade to 2025-10-12. Exact commands for each OS are on this page.

Is CVE-2025-62170 being exploited?

CVE-2025-62170 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-62170 affect?

CVE-2025-62170 affects rathena. Severity is high (CVSS 7.5). 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

How urgent is CVE-2025-62170?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-58447 CRITICAL 9.8 UPGRADE rAthena is an open-source cross-platform massively multiplayer online role playing game (MMORPG) server
CVE-2025-58448 CRITICAL 9.1 UPGRADE rAthena is an open-source cross-platform massively multiplayer online role playing game (MMORPG) server
CVE-2025-58750 HIGH 8.2 UPGRADE rAthena is an open-source cross-platform massively multiplayer online role playing game (MMORPG) server

References

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