{"cve":"CVE-2021-28681","nvd":{"published":"2021-03-18T04:15:14.617","modified":"2026-06-17T03:46:47.087","status":"Modified","description":"Pion WebRTC before 3.0.15 didn't properly tear down the DTLS Connection when certificate verification failed. The PeerConnectionState was set to failed, but a user could ignore that and continue to use the PeerConnection. )A WebRTC implementation shouldn't allow the user to continue if verification has failed.)","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:L/A:N","score":5.3},"cwes":["CWE-863"],"references":["https://github.com/pion/webrtc/issues/1708","https://github.com/pion/webrtc/security/advisories/GHSA-74xm-qj29-cq8p","https://github.com/pion/webrtc/issues/1708","https://github.com/pion/webrtc/security/advisories/GHSA-74xm-qj29-cq8p"],"products":["webrtc_project:webrtc"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-28681","score":0.00677,"percentile":0.52297,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-74xm-qj29-cq8p","url":"https://osv.dev/vulnerability/GHSA-74xm-qj29-cq8p","summary":"In github.com/pion/webrtc, failed DTLS certificate verification doesn't stop data channel communication","modified":"2026-07-08T06:28:01.869413904Z","packages":[{"ecosystem":"Go","name":"github.com/pion/webrtc/v3","purl":"pkg:golang/github.com/pion/webrtc/v3","ranges":["<3.0.15"],"fixed":["3.0.15"]}]},{"id":"GO-2021-0104","url":"https://osv.dev/vulnerability/GO-2021-0104","summary":"Authorization bypass in github.com/pion/webrtc/v3","modified":"2024-05-20T16:03:47Z","packages":[{"ecosystem":"Go","name":"github.com/pion/webrtc/v3","purl":"pkg:golang/github.com/pion/webrtc/v3","ranges":["<3.0.15"],"fixed":["3.0.15"]}]}],"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."]}