ZeroDayCN catalogs 1,840+ CVEs, tracks 312 named APT and exploit-vendor groups, and ships triage-ready advisories to enterprise SOCs an average of 19 hours before NVD. Built by an 11-person research team out of Shanghai since 2017.
A live cross-section of the four most recent disclosures staged for subscriber release. Tickers cycle automatically; full advisory body lives behind the Threat Brief paywall.
The industry's only continuously updated database of Chinese-nexus APT and gray-market exploit vendors. Four entries below are pulled live from the index; the full 312-group roster ships with every Threat Brief subscription.
In 2024, ZeroDayCN advisories reached enterprise subscribers a median 19 hours before the corresponding CVE landed in the National Vulnerability Database — long enough for patch staging, IOC ingestion, and SIEM rule rollout before the public storm.
Every ZeroDayCN disclosure carries a vendor-confirmation stamp or an explicit "in-the-wild, unverified" caveat. We cite our false-positive rate at 4.7% and let the audit trail prove the rest — no marketing-driven "zero false positives" theater.
Our private disclosure pipeline has responsibly coordinated 230+ vendor fixes with the Microsoft, Apple, Google, and Huawei security teams. We publish a patch advisory for every disclosure we help close — the receipts are in the archive.
ZeroDayCN was founded in Shanghai by researchers who previously shipped offensive tooling and vulnerability research for Qihoo 360 and the Pangu Lab jailbreak team — the same lineage that produced some of the most-cited Chinese-language exploit analyses of the last decade.
The desk includes former NSFocus red team leads and three Pangu Lab alumni, with combined 140+ years of vulnerability-research experience. Every CVE in the catalog carries a named analyst and a chain-of-custody timestamp.
Enterprise subscribers get a 24/7 on-call research hotline with a 12-minute median response time — escalation paths straight to the analyst who wrote the advisory, not a tier-one support queue.
