CVE-2025-58750Network attack vector

Memory corruption and service interruption via unchecked indexes

Published Sep 9, 2025 · Updated Sep 10, 2025

Out-of-bounds access in rAthena before commit 0cc348b allows remote attackers to corrupt memory or interrupt the character server. The chclif_parse_moveCharSlot handler uses attacker-controlled source and destination slot indexes to access char_moves and found_char before validating them against MAX_CHARS. A network client needs no privileges or user interaction; crafted character-slot requests can alter process memory and terminate the service.

CVSS severity8.2
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in rAthena before commit 0cc348b allows remote attackers to corrupt memory or interrupt the character server. The chclif_parse_moveCharSlot handler uses attacker-controlled source and destination slot indexes to access char_moves and found_char before validating them against MAX_CHARS. A network client needs no privileges or user interaction; crafted character-slot requests can alter process memory and terminate the service.

The record

CVE
CVE-2025-58750
Published
Sep 9, 2025
Updated
Sep 10, 2025
Vendor
rAthena
Product
rAthena
Classifications
CWE-787, CWE-125, CWE-119, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0cc348b

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

rAthena · rAthenaversion=< 0cc348b

Published CVSS scores

9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
8.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-125Out-of-bounds Read
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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