{"cve":"CVE-2021-30130","nvd":{"published":"2021-04-06T15:15:13.497","modified":"2026-06-17T03:49:43.327","status":"Modified","description":"phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-347"],"references":["https://github.com/phpseclib/phpseclib/pull/1635","https://github.com/phpseclib/phpseclib/releases/tag/2.0.31","https://github.com/phpseclib/phpseclib/releases/tag/3.0.7","https://lists.debian.org/debian-lts-announce/2022/11/msg00024.html","https://lists.debian.org/debian-lts-announce/2022/11/msg00025.html"],"products":["debian:debian_linux","phpseclib:phpseclib"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-30130","score":0.01055,"percentile":0.64428,"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."]}