{"cve":"CVE-2012-1821","nvd":{"published":"2012-05-24T00:55:02.727","modified":"2026-06-16T23:40:22.020","status":"Modified","description":"The Network Threat Protection module in the Manager component in Symantec Endpoint Protection (SEP) 11.0.600x through 11.0.700x on Windows Server 2003 allows remote attackers to cause a denial of service (web-server outage, or daemon crash or hang) via a flood of packets that triggers automated blocking of network traffic.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://osvdb.org/82147","http://secunia.com/advisories/49221","http://www.kb.cert.org/vuls/id/149070","http://www.securityfocus.com/bid/50358","http://www.securitytracker.com/id?1027092"],"products":["symantec:endpoint_protection"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2012-1821","score":0.02838,"percentile":0.86653,"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."]}