CVE-2022-38221Public exploitNetwork attack vector

Unauthenticated server crash via FTcpListener buffer overflow

Published Aug 15, 2022 · Updated Aug 3, 2024

Buffer overflow in The Isle Evrima dedicated server 0.9.88.07 allows remote attackers to crash it through an exposed RCON port. The FTcpListener thread copies RCON input into a destination buffer without first validating that the input fits. No authentication or user interaction is required; the confirmed consequence is a server crash, while arbitrary code execution remains unverified.

CVSS severity9.8
Critical
EPSS probability1.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in The Isle Evrima dedicated server 0.9.88.07 allows remote attackers to crash it through an exposed RCON port. The FTcpListener thread copies RCON input into a destination buffer without first validating that the input fits. No authentication or user interaction is required; the confirmed consequence is a server crash, while arbitrary code execution remains unverified.

The record

CVE
CVE-2022-38221
Published
Aug 15, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

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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