CVE-2025-14501
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 · uneditedSante PACS Server HTTP Content-Length Header Handling NULL Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Sante PACS Server. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HTTP Content-Length header. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-26770.
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 confidenceThis is a NULL pointer dereference vulnerability in Sante PACS Server's HTTP Content-Length header parsing logic. The application fails to validate a pointer before dereferencing it when processing the Content-Length HTTP header, causing a crash and denial of service. The vulnerability is exploitable remotely without authentication.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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:3.0/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 checksWork through these to decide whether this CVE applies to you.
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Confirm Sante PACS Server is installedIdentify the installed application by checking running services or installed programs for 'Sante PACS' or 'Sante' in the nameAffected if The system is running Sante PACS Server software
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Determine the installed versionCheck the application's version information through its administration interface, installed files metadata, or service information. Compare your version against any official release notes or release history for CVE-2025-14501Affected if Your version contains the vulnerability in Content-Length header parsing
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Verify HTTP interface is enabledCheck if the PACS server HTTP/HTTPS service is running and listening on network ports (commonly ports 80, 443, or custom PACS ports). Inspect service configuration or run netstat/ss to list active listenersAffected if The HTTP interface is enabled and accepting connections
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Check network accessibilityDetermine if the HTTP port is exposed to network traffic from untrusted sources. Review firewall rules, network segmentation, or ACLs controlling access to the PACS server HTTP portAffected if The HTTP service is reachable from network locations where attackers could send malicious requests
If you are running Sante PACS Server with its HTTP interface enabled and accessible, you are likely affected by this NULL pointer dereference vulnerability in Content-Length header parsing.
Generated from the published advisory. Verify against your own configuration.
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 dataApply the vendor patch for CVE-2025-14501 when available. As an interim measure, consider restricting network access to the PACS server or implementing Web Application Firewall rules to validate Content-Length header values.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-14501 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-14501 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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