Zero-Day
ཉིན་ཐོག་ཉམས་ཞན།
零日漏洞
Zero-Day · ཉིན་ཐོག་ཉམས་ཞན། · 零日漏洞 · ZEER-oh day · 0-day · zero-day vulnerability · Cybersecurity · vulnerability · exploit · patchCybersecurity0-day zero-day vulnerability/ZEER-oh day/
Also known as: 0-day, zero-day vulnerability
Last updated August 7, 2026
Definition
A zero-day is a software vulnerability unknown to the vendor (or without a fix yet), so defenders have had “zero days” to patch before attackers can exploit it.
Real-World Example
Attackers may sell or use a zero-day in a popular browser to compromise machines before a security update is released.
References
Related terms
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