CVE-2022-35217
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 · uneditedThe NHI card’s web service component has a stack-based buffer overflow vulnerability due to insufficient validation for network packet header length. A local area network attacker with general user privilege can exploit this vulnerability to execute arbitrary code, manipulate system command or disrupt service.
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 confidenceThe NHI card's web service component contains a stack-based buffer overflow vulnerability caused by insufficient validation of network packet header length. A local area network attacker with general user privileges can exploit this to execute arbitrary code, manipulate system commands, or cause service disruption.
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 dataall versionsCVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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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Identify NHI Health Insurance Web Service ComponentInventory installed software on systems or check running services for the NHI card web service component. On Windows, review installed programs list or running services. On Linux, check process lists or installed packages for terms like 'nhi', 'health insurance', 'web service', or related naming.Affected if The NHI Health Insurance Web Service Component is present on the system regardless of version, as all versions are affected.
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Verify web service is network accessibleCheck network configuration to determine if the NHI web service component is bound to network interfaces accessible from the local area network. Use netstat or equivalent commands to identify listening ports and their binding addresses.Affected if The NHI web service component listens on interfaces reachable from the LAN, enabling a LAN attacker to send malicious packets.
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Confirm attacker has LAN accessReview network segmentation and access control policies. Determine if general user accounts can access the network segment where the NHI web service component is deployed.Affected if General users without elevated privileges can reach the NHI web service component over the LAN.
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Check if packet header validation is disabledReview configuration files or registry settings related to the NHI web service component for any input validation or packet header length validation settings. Examine logs for any indicators of malformed packet handling.Affected if Packet header length validation is not enforced or can be bypassed in the configuration.
The environment is affected if the NHI Health Insurance Web Service Component is present and accessible from the LAN, as all versions contain the buffer overflow vulnerability.
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 vendor-provided security patches for the NHI card web service component. If patches are unavailable, implement network segmentation to restrict LAN access and add input validation for packet header length processing as a compensating control.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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 locallyCheck whether your project pulls in CVE-2022-35217 — 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-2022-35217 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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