{"cve":"CVE-2021-21751","nvd":{"published":"2021-12-27T19:15:08.060","modified":"2026-06-17T03:36:05.423","status":"Modified","description":"ZTE BigVideo analysis product has an input verification vulnerability. Due to the inconsistency between the front and back verifications when configuring the large screen page, an attacker with high privileges could exploit this vulnerability to tamper with the URL and cause service exception.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","score":8.1},"cwes":[],"references":["https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1021884","https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1021884"],"products":["zte:zxin10_cms"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-21751","score":0.00855,"percentile":0.58383,"date":"2026-11-01"},"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."]}