{"cve":"CVE-2017-10784","nvd":{"published":"2017-09-19T17:29:00.263","modified":"2026-06-17T01:00:42.297","status":"Modified","description":"The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-287"],"references":["http://www.securityfocus.com/bid/100853","http://www.securitytracker.com/id/1039363","http://www.securitytracker.com/id/1042004","https://access.redhat.com/errata/RHSA-2017:3485","https://access.redhat.com/errata/RHSA-2018:0378"],"products":["ruby-lang:ruby"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2017-10784","score":0.16412,"percentile":0.9698,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-369m-2gv6-mw28","url":"https://osv.dev/vulnerability/GHSA-369m-2gv6-mw28","summary":"WEBrick RCE Vulnerability","modified":"2024-03-13T05:20:04.843043Z","packages":[{"ecosystem":"RubyGems","name":"webrick","purl":"pkg:gem/webrick","ranges":["<1.4.0"],"fixed":["1.4.0"]}]}],"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."]}