Verified65% confidenceFactExact time
A zero-day vulnerability refers to a security flaw that has been discovered before the vendor releases a patch and may have already been exploited.
3
Sources
65%
Confidence
Long-term
Relevance
7/17/2026
First Seen
Sources
Related Claims
Verified0day漏洞指软件厂商尚未知晓或知晓但尚未发布补丁的安全漏洞78% similarVerifiedA zero-day vulnerability is a security flaw that has not yet been discovered or patched by the software vendor; the trading price of high-value zero-day vulnerabilities on underground markets can reach millions of dollars.73% similarUnverifiedAutomated exploitation of known vulnerabilities is more a matter of pattern matching and tool orchestration, while discovering new vulnerabilities from scratch is the core challenge of security research.68% similarUnverifiedA 1-day exploit (n-day exploit) exploits a vulnerability during the period after a patch has been released but before a large number of users have upgraded, with the danger being that the patch release exposes the location of the vulnerability.68% similar
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