{"cve":"CVE-2021-35053","nvd":{"published":"2021-11-03T20:15:08.347","modified":"2026-06-17T03:57:02.977","status":"Modified","description":"Possible system denial of service in case of arbitrary changing Firefox browser parameters. An attacker could change specific Firefox browser parameters file in a certain way and then reboot the system to make the system unbootable.","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:N/A:H","score":7.5},"cwes":[],"references":["https://support.kaspersky.com/general/vulnerability.aspx?el=12430#01112021","https://www.zerodayinitiative.com/advisories/ZDI-21-1280/","https://www.zerodayinitiative.com/advisories/ZDI-22-431/","https://support.kaspersky.com/general/vulnerability.aspx?el=12430#01112021","https://www.zerodayinitiative.com/advisories/ZDI-21-1280/"],"products":["kaspersky:endpoint_security"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-35053","score":0.02601,"percentile":0.85357,"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."]}