{"cve":"CVE-2016-9955","nvd":{"published":"2017-02-17T02:59:14.233","modified":"2026-06-17T00:56:49.870","status":"Modified","description":"The SimpleSAML_XML_Validator class constructor in SimpleSAMLphp before 1.14.11 might allow remote attackers to spoof signatures on SAML 1 responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H","score":6.3},"cwes":["CWE-20"],"references":["http://www.securityfocus.com/bid/94946","https://lists.debian.org/debian-lts-announce/2018/03/msg00001.html","https://simplesamlphp.org/security/201612-02","http://www.securityfocus.com/bid/94946","https://lists.debian.org/debian-lts-announce/2018/03/msg00001.html"],"products":["debian:debian_linux","simplesamlphp:simplesamlphp"],"source":"nvd","synced_at":"2026-10-19T20:41:54.846948762+00:00"},"epss":{"cve":"CVE-2016-9955","score":0.01182,"percentile":0.67756,"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."]}