{"cve":"CVE-2016-0755","nvd":{"published":"2016-01-29T20:59:05.653","modified":"2026-06-17T00:38:09.573","status":"Modified","description":"The ConnectionExists function in lib/url.c in libcurl before 7.47.0 does not properly re-use NTLM-authenticated proxy connections, which might allow remote attackers to authenticate as other users via a request, a similar issue to CVE-2014-0015.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","score":7.3},"cwes":["CWE-287"],"references":["http://curl.haxx.se/docs/adv_20160127A.html","http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html","http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176546.html","http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177342.html","http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177383.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","haxx:curl"],"source":"nvd","synced_at":"2026-10-19T20:37:48.328043465+00:00"},"epss":{"cve":"CVE-2016-0755","score":0.0908,"percentile":0.95295,"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."]}