{"cve":"CVE-2011-0411","nvd":{"published":"2011-03-16T22:55:02.717","modified":"2026-06-16T23:27:18.350","status":"Modified","description":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705","http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056559.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056560.html","http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html"],"products":["postfix:postfix"],"source":"nvd","synced_at":"2026-10-19T19:57:56.749847046+00:00"},"epss":{"cve":"CVE-2011-0411","score":0.16334,"percentile":0.96961,"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."]}