{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2019-25658", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-04-05T12:45:25.628Z", "datePublished": "2026-04-05T20:45:13.943Z", "dateUpdated": "2026-04-06T18:10:03.605Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-05T20:45:13.943Z"}, "datePublic": "2019-01-30T00:00:00.000Z", "title": "a-Mac Address Change 5.4 Local Buffer Overflow DoS", "descriptions": [{"lang": "en", "value": "a-Mac Address Change 5.4 contains a local buffer overflow vulnerability that allows local attackers to crash the application by supplying oversized input to registration form fields. Attackers can paste 212 bytes of data into the 'Your Name', 'Your Company', or 'Register Code' fields and click the Register button to trigger a denial of service crash."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Write", "cweId": "CWE-787", "type": "CWE"}]}], "affected": [{"vendor": "Amac", "product": "Mac Address Change", "versions": [{"version": "5.4", "status": "affected"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "baseScore": 6.8, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://www.exploit-db.com/exploits/46292", "name": "ExploitDB-46292", "tags": ["exploit"]}, {"url": "http://amac.paqtool.com/", "name": "Official Product Homepage", "tags": ["product"]}, {"name": "VulnCheck Advisory: a-Mac Address Change 5.4 Local Buffer Overflow DoS", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/a-mac-address-change-local-buffer-overflow-dos"}], "credits": [{"lang": "en", "value": "Rafael Pedrero", "type": "finder"}], "x_generator": {"engine": "vulncheck"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-06T18:09:52.849694Z", "id": "CVE-2019-25658", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-06T18:10:03.605Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.4"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Mac Address Change", "source": "cna", "vendor": "Amac"}, "product": "mac_address_change", "vendor": "amac"}], "analysis": {"en": {"generated_at": "2026-04-05T23:28:50.537298+00:00", "value": {"mitigation_remediation": ["Apply any vendor-released patch or upgrade to a newer release of the Mac Address Change application.", "If no patch is available, restrict local access to the application to trusted users or isolate the service within a controlled environment.", "Consider restarting the application or system as a temporary workaround to restore service."], "summary": {"action": "Apply patch", "impact": "Denial of Service via local buffer overflow"}, "threat_synthesis": {"affected_systems": "The flaw affects the Mac Address Change application from Amac, specifically the 5.4 release series. No additional vendor or product details are disclosed, and version information beyond 5.4 is not provided.", "description_and_impact": "A local buffer overflow exists in the registration form of Amac: Mac Address Change version 5.4. By supplying 212 bytes of data in the 'Your Name', 'Your Company', or 'Register Code' fields, a local user can force the application to crash. The vulnerability leads to a denial of service but does not grant code execution or modify system state outside the application.", "risk_and_exploitability": "The vulnerability receives a CVSS score of 6.8, indicating moderate severity. Exploit probability data is unavailable, and the issue is not listed as a known exploited vulnerability. Attack convergence appears limited to users with local access to the system running the application; an authenticated local attacker can trigger the crash by exploiting the oversized input. The impact is confined to application availability, with no evidence of persistence or privilege escalation."}}}}, "created": "2026-04-06T20:22:58.951550+00:00", "title": "Local Buffer Overflow Leading to DoS in Amac Mac Address Change 5.4", "updated": "2026-04-06T21:56:19.480215+00:00", "vendors": ["amac", "amac$PRODUCT$mac_address_change"]}