{"id":"CVE-2016-4523","published":"2016-06-09T10:59:04Z","modified":"2026-06-17T00:47:42Z","title":"Trihedral VTScada (formerly VTS) Denial-of-Service Vulnerability","vendor":"Trihedral","product":"VTScada (formerly VTS)","tier":"core","eol":null,"description":{"text":"The WAP interface in Trihedral VTScada (formerly VTS) 8.x through 11.x before 11.2.02 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via unspecified vectors.","provenance":"source","from":"NVD"},"summary":{"text":"The WAP interface in Trihedral VTScada (formerly VTS) 8.x through 11.x, prior to 11.2.02, contains an out-of-bounds read flaw. A remote attacker can crash the application and cause a denial of service through unspecified vectors, with no authentication or user interaction required and network access the only prerequisite.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:13:25Z"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.31167,"percentile":0.9827,"date":"2026-10-31","provenance":"source"},"kev":{"dateAdded":"2022-04-15","dueDate":"2022-05-06","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2016-4523","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-01-12","exploitedFirstSeen":"2022-01-12","ransomware":false,"evidence":[{"url":"https://blog.checkpoint.com/security/december-2021s-most-wanted-malware-trickbot-emotet-and-the-log4j-plague/","date":"2022-01-12"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-04-15"},{"url":"https://blog.checkpoint.com/security/april-2022s-most-wanted-malware-a-shake-up-in-the-index-but-emotet-is-still-on-top/","date":"2022-05-11"},{"url":"https://blog.checkpoint.com/security/april-2024s-most-wanted-malware-surge-in-androxgh0st-attacks-and-the-decline-of-lockbit3/","date":"2024-05-09"},{"url":"https://blog.checkpoint.com/research/may-2024s-most-wanted-malware-phorpiex-botnet-unleashes-phishing-frenzy-while-lockbit3-dominates-once-again","date":"2024-06-10"},{"url":"https://blog.checkpoint.com/research/july-2024s-most-wanted-malware-remcos-and-ransomhub-run-rampant/","date":"2024-08-12"},{"url":"https://blog.checkpoint.com/research/september-2024s-most-wanted-malware-notable-ai-driven-techniques-and-persistent-ransomhub-threats/","date":"2024-10-11"},{"url":"https://blog.checkpoint.com/security/october-2024s-most-wanted-malware-infostealers-surge-as-cyber-criminals-leverage-innovative-attack-vectors/","date":"2024-11-11"}],"evidenceTotal":8,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Nov 1, 2026","url":"https://otx.alienvault.com/pulse/6ae6007740c10de9f3c0173d","created":"2026-10-31"},{"name":"Actively_Exploited_Kev | Oct 31, 2026","url":"https://otx.alienvault.com/pulse/6ae4aefab0c2191cecd41862","created":"2026-10-30"},{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"}],"provenance":"machine"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"references":[{"url":"http://www.securityfocus.com/bid/91077","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.zerodayinitiative.com/advisories/ZDI-16-405","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01","tags":["Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/91077","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.zerodayinitiative.com/advisories/ZDI-16-405","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4523","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Remote exploitation of exposed WAP interface","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"The WAP interface in Trihedral VTScada","start":0,"end":38}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1499.004","name":"Application or System Exploitation","tactics":["impact"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Crash causes application denial of service","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows remote attackers to cause a denial of service","start":86,"end":138}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2016-5510","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-5510","exploited":true,"exploitedSince":"2022-04-15","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1499.004"],"provenance":"ai"}],"timeline":[{"date":"2016-06-09","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4523","provenance":"source"},{"date":"2022-01-12","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://blog.checkpoint.com/security/december-2021s-most-wanted-malware-trickbot-emotet-and-the-log4j-plague/","provenance":"source"},{"date":"2022-04-15","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-04-15","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-5510","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":2136},"priority":{"score":62.9,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1754 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.65,"detail":"percentile 0.9827"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.25,"detail":"base score 7.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}