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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.74"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "LanHelper", "source": "cna", "vendor": "Hainsoft"}, "product": "lanhelper", "vendor": "hainsoft"}], "analysis": {"en": {"generated_at": "2026-04-05T23:53:27.018933+00:00", "value": {"mitigation_remediation": ["Check the Hainsoft website or support channels for a new release or patch.", "If a patch is not yet available, restrict the maximum length of messages allowed by the Form Send Message feature to prevent overflow.", "Monitor LanHelper logs for repeated crashes and consider disabling the Form Send Message feature until a fix is released.", "Ensure that only trusted users can access the Form Send Message functionality to limit potential local abuse."], "summary": {"action": "Apply Update", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the Hainsoft LanHelper product, specifically version 1.74. No other versions are reported to be impacted.", "description_and_impact": "LanHelper 1.74 contains a local buffer overflow that is triggered when an attacker submits an excessively long string into the Form Send Message message text field. The overflow causes the application to crash, resulting in a denial of service. The weakness matches the buffer overrun category (CWE\u2011787). The impact is limited to the application itself and the service it provides, without compromising data confidentiality or integrity.", "risk_and_exploitability": "The CVSS score of 6.9 classifies this flaw as medium severity. Exploitation requires local or in\u2011network access to the LanHelper application and does not appear to be remotely exploitable. The EPSS score is unavailable and the flaw is not listed in the CISA KEV catalog, indicating that it is not widely exploited. Nonetheless, repeated crashes can disrupt service availability and cause user frustration."}}}}, "created": "2026-04-06T20:22:56.917969+00:00", "updated": "2026-04-06T21:56:17.360713+00:00", "vendors": ["hainsoft", "hainsoft$PRODUCT$lanhelper"]}