{"cve":"CVE-2015-6839","nvd":{"published":"2017-10-23T18:29:00.837","modified":"2026-06-17T00:31:30.757","status":"Modified","description":"The parse function in MSA vot.Ar 3.1 does not check whether a candidate receives more than one vote, which allows physically proximate attackers to cast multiple votes for a candidate via a crafted RFID ballot tag.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":4.6},"cwes":["CWE-20"],"references":["https://docs.google.com/document/d/13t1jqu-Upj4SyjYBMj3OMshdy6rGBrnb1R3P-goz-cs/edit?pli=1","https://docs.google.com/document/d/1aH6kvoLR8O1qWOpEz89FAB2xFcBNB-QqHgZpXxg0vGE/preview?sle=true&pli=1","https://www.eleccionesciudad.gob.ar/uploads/resoluciones/Informe_05-BALOTAJE-2015-07-17.pdf","https://www.youtube.com/watch?v=CTOCspLn6Zk","https://docs.google.com/document/d/13t1jqu-Upj4SyjYBMj3OMshdy6rGBrnb1R3P-goz-cs/edit?pli=1"],"products":["grupo_msa:vot.ar"],"source":"nvd","synced_at":"2026-10-19T20:47:01.408438353+00:00"},"epss":{"cve":"CVE-2015-6839","score":0.00396,"percentile":0.33796,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}