Open Xchange AppsuiteApplication · Open Xchange

CVE-2023-41707

MEDIUM · 6.5 CVSS v3.1 Published 2024-02-12
Fix available
A fix is available. Upgrade to 7.6.3 / 7.10.6 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Processing of user-defined mail search expressions is not limited. Availability of OX App Suite could be reduced due to high processing load. Please deploy the provided updates and patch releases. Processing time of mail search expressions now gets monitored, and the related request is terminated if a resource threshold is reached. No publicly available exploits are known.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

OX App Suite does not impose limits on processing user-defined mail search expressions, allowing attackers to submit computationally expensive search queries that consume excessive server resources and degrade availability. The vulnerability is a classic resource exhaustion issue where unbounded search expression processing can be leveraged to cause denial of service. The fix adds monitoring of search expression processing time with automatic termination of requests that exceed defined resource thresholds.

MitigationDeploy the vendor-provided updates and patch releases for OX App Suite to enable resource monitoring and request termination for mail search expressions.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Open Xchange AppsuiteApplication
Affected:< 7.6.3> 7.6.3, < 7.10.6> 7.10.6, < 8.20= 7.6.3= 7.10.6

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify OX App Suite version
    Locate the installed OX App Suite version number, typically found in the application server configuration, package manager output, or by querying the server's version endpoint if available
    Affected if The installed version is less than 8.20, or matches exactly 7.6.3 or 7.10.6, indicating it falls within the affected version ranges
  2. Determine mail search module status
    Verify that the mail search functionality is enabled and accessible on the OX App Suite server. This is typically a core component but can be checked via the server's module configuration or admin console
    Affected if Mail search is enabled and accessible, as this is the feature that processes the unbounded user expressions
  3. Check for resource monitoring configuration
    Inspect the OX App Suite configuration files or admin settings for the presence of resource monitoring thresholds for search expression processing, which is the control introduced by the fix
    Affected if Resource monitoring limits for search expressions are NOT configured or not present, indicating the vulnerable state without the fix

The environment is affected if OX App Suite version is below 8.20 (or exactly 7.6.3 or 7.10.6) and mail search is enabled without resource monitoring limits configured for search expressions.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to 7.6.3 / 7.10.6 / 8.20 or later
Fixed in 7.6.37.10.68.20
Interim mitigation

Deploy the vendor-provided updates and patch releases for OX App Suite to enable resource monitoring and request termination for mail search expressions.

Fix this in Open Xchange Appsuite Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-41707 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-41707 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data