CVE-2023-41706Network attack vector

Service degradation via unbounded drive search regex

Published Feb 12, 2024 · Updated Nov 4, 2025

Uncontrolled resource consumption in OX App Suite backend allows remote authenticated users to degrade service through crafted drive searches. The drive-search expression processor evaluates user-defined regular expressions without a processing-time limit, permitting sustained high processing load. A valid account with Drive search access is required; repeated expensive expressions reduce availability without reported data access or modification.

CVSS severity6.5
Medium
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in OX App Suite backend allows remote authenticated users to degrade service through crafted drive searches. The drive-search expression processor evaluates user-defined regular expressions without a processing-time limit, permitting sustained high processing load. A valid account with Drive search access is required; repeated expensive expressions reduce availability without reported data access or modification.

The record

CVE
CVE-2023-41706
Published
Feb 12, 2024
Updated
Nov 4, 2025
Vendor
Open-Xchange GmbH
Product
OX App Suite
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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=0 <=7.10.6-rev55
  2. Affected versionversion=0 <=7.6.3-rev71
  3. Affected versionversion=0 <=8.19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open-Xchange GmbH · OX App Suiteversion=0 <=7.10.6-rev55; version=0 <=7.6.3-rev71; version=0 <=8.19

Published CVSS scores

6.5Open-Xchange GmbHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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