{"cve":"CVE-2017-1000256","nvd":{"published":"2017-10-31T15:29:00.240","modified":"2026-06-17T00:59:00.287","status":"Modified","description":"libvirt version 2.3.0 and later is vulnerable to a bad default configuration of \"verify-peer=no\" passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-295"],"references":["http://www.debian.org/security/2017/dsa-4003","https://access.redhat.com/security/cve/CVE-2017-1000256","https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1556251.html","https://www.redhat.com/archives/libvirt-announce/2017-October/msg00001.html","http://www.debian.org/security/2017/dsa-4003"],"products":["debian:debian_linux","redhat:libvirt"],"source":"nvd","synced_at":"2026-10-19T20:47:01.408438353+00:00"},"epss":{"cve":"CVE-2017-1000256","score":0.01714,"percentile":0.77404,"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."]}