{"cve":"CVE-2011-4409","nvd":{"published":"2012-06-16T00:55:05.657","modified":"2026-06-16T23:34:52.983","status":"Modified","description":"The Ubuntu One Client for Ubuntu 10.04 LTS, 11.04, 11.10, and 12.04 LTS does not properly validate SSL certificates, which allows remote attackers to spoof a server and modify or read sensitive information via a man-in-the-middle (MITM) attack.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://secunia.com/advisories/49442","http://ubuntu.com/usn/usn-1465-1","http://ubuntu.com/usn/usn-1465-2","http://ubuntu.com/usn/usn-1465-3","http://www.osvdb.org/82748"],"products":["canonical:ubuntu_linux"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2011-4409","score":0.01735,"percentile":0.77677,"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."]}