Axxon OneApplication · Axxonsoft

CVE-2025-10225

HIGH · 7.5 CVSS v3.1 Published 2025-09-10
Fix available
A fix is available. Upgrade to after 2.0.6 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges 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
Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) in the OpenSSL-based session module in AxxonSoft Axxon One (C-Werk) 2.0.6 and earlier on Windows allows a remote attacker under high load conditions to cause application crashes or unpredictable behavior via triggering memory reallocation errors when handling expired session keys.

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 · high confidence

A buffer handling vulnerability exists in the OpenSSL-based session module of AxxonSoft Axxon One (C-Werk) 2.0.6 and earlier on Windows. Under high load conditions, a remote attacker can trigger memory reallocation errors when the system processes expired session keys, leading to memory corruption, application crashes, or unpredictable behavior.

MitigationApply the vendor patch or upgrade to Axxon One version later than 2.0.6. If no patch is available, consider restricting network access to the affected system and monitoring for signs of session-based DoS attacks.

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
Axxon OneApplication
Affected:<= 2.0.6

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
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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 installed Axxon One version
    Open Windows Control Panel > Programs and Features, or check the installation directory for a version file. The executable is typically named 'C-Werk.exe' or similar. Right-click the executable, select Properties, and inspect the Version tab.
    Affected if The installed version is 2.0.6 or any version lower than 2.0.6 on Windows.
  2. Confirm operating system platform
    Verify that the Axxon One server is running on Windows. This vulnerability only affects the Windows implementation of the session module.
    Affected if The system is running any Windows version with Axxon One <= 2.0.6 installed.
  3. Determine if session module is active
    Inspect the Axxon One configuration files (typically in the installation directory under 'config' or 'settings' folders) for session-related settings. Look for configurations referencing OpenSSL, session keys, or authentication modules.
    Affected if The session module using OpenSSL is enabled in the configuration.
  4. Review application event logs for session errors
    Open Windows Event Viewer > Application Logs. Search for events from Axxon One or C-Werk around the time of crashes. Look for entries mentioning memory allocation failures, OpenSSL errors, or session key processing failures.
    Affected if Event logs show recurring errors related to session handling, memory corruption, or unexpected process terminations.
  5. Check for high-load session activity
    Monitor network connections to the Axxon One server port (default HTTP ports 80/443 or custom ports). Use 'netstat -an' or the Windows Resource Monitor to observe connection patterns and check for unusual spikes in session initialization traffic.
    Affected if The system experiences high volumes of session-related requests and shows instability or crashes correlated with this load.

A system is affected if it runs Axxon One version 2.0.6 or earlier on Windows, has the OpenSSL-based session module enabled, and exhibits crash behavior or memory errors during high session load.

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 a release after 2.0.6
Interim mitigation

Apply the vendor patch or upgrade to Axxon One version later than 2.0.6. If no patch is available, consider restricting network access to the affected system and monitoring for signs of session-based DoS attacks.

Fix this in Axxon One Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing6.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,220
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An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,552.

Scan for this in your stack

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dbcve dependency scanner

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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-2025-10225 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