CVE-2022-39052Network attack vector

Service hang via many-recipient email

Published Oct 17, 2022 · Updated May 10, 2025

Infinite-loop DoS in affected OTRS and OTRS Community Edition releases allows remote attackers to hang the system using a many-recipient email. Processing the attacker-controlled recipient list enters an infinite loop; the vendor has not published the affected function or exit condition. No authentication or user interaction is required, and the reported consequence is an availability-only service hang.

CVSS severity7.5
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Infinite-loop DoS in affected OTRS and OTRS Community Edition releases allows remote attackers to hang the system using a many-recipient email. Processing the attacker-controlled recipient list enters an infinite loop; the vendor has not published the affected function or exit condition. No authentication or user interaction is required, and the reported consequence is an availability-only service hang.

The record

CVE
CVE-2022-39052
Published
Oct 17, 2022
Updated
May 10, 2025
Vendor
Centuran Consulting
Product
OTRS Community Edition
Classifications
CWE-835, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2022CVE publishedPublication date reported by the CVE source.
  2. May 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=6.0.1 <6.0.x*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Centuran Consulting · OTRS Community Editionversion=6.0.1 <6.0.x*
OTRS AG · OTRSversion=7.0.x <=7.0.39; version=8.0.x <=8.0.26

Published CVSS scores

7.5OTRS AGCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-835Loop with Unreachable Exit Condition ('Infinite Loop')
T1499.003Application Exhaustion Flood

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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