{"cve":{"cve_id":"CVE-2019-6553","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.50031,"epss_percentile":0.98753,"epss_as_of":"2026-06-23","description":"A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An input validation issue in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.","published_at":"2019-04-04T18:59:09Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-121"],"nvd_references":["https://ics-cert.us-cert.gov/advisories/ICSA-19-064-01"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:12:55.526598Z"},"effective_severity":null,"badges":["epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"rockwell-automation","vendor_name":"Rockwell Automation","product_slug":"rslinx-classic","product_name":"RSLinx Classic","version_start":"4.10.00 and prior","version_start_inclusive":true,"version_end":"4.10.00 and prior","version_end_inclusive":true,"cpe23_uri":"cve5:rockwell-automation:rslinx-classic:4.10.00 and prior:4.10.00 and prior"}],"exploit_refs":[],"news":[],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-19-064-01","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2019-04-04T18:59:09Z","label":"CVE published","source":null}]}