{"cve":"CVE-2011-1947","nvd":{"published":"2011-06-02T19:55:03.903","modified":"2026-06-16T23:30:26.833","status":"Modified","description":"fetchmail 5.9.9 through 6.3.19 does not properly limit the wait time after issuing a (1) STARTTLS or (2) STLS request, which allows remote servers to cause a denial of service (application hang) by acknowledging the request but not sending additional packets.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://gitorious.org/fetchmail/fetchmail/blobs/legacy_63/fetchmail-SA-2011-01.txt","http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061634.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061672.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061735.html","http://openwall.com/lists/oss-security/2011/05/30/1"],"products":["fetchmail:fetchmail"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-1947","score":0.02551,"percentile":0.85039,"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."]}