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Latest coverage for 0-Day

A 0-Day is a software vulnerability without an available fix, creating risk because defenders have limited time to mitigate exploitation.

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Background for this topic.

0-Day describes a software vulnerability unknown to the software maker or unpatched when first exploited. Attackers can use these flaws immediately, as no official fix or signature exists to block the exploit. Such vulnerabilities often affect widely deployed software or hardware, making them valuable for targeted attacks or widespread campaigns.

Because defenders lack patches or reliable detection signatures initially, they must rely on anomaly detection, network monitoring, and threat intelligence to identify suspicious activity linked to 0-day exploits. Rapid patching once a fix is released is critical to reduce exposure. Tracking emerging 0-day threats helps prioritize defensive measures and informs risk management decisions in environments where unpatched vulnerabilities pose significant security risks.

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Bank Info Security 2 years, 5 months ago

Ivanti Uses End-of-Life Operating Systems, Software Packages

Outdated Software, Exploited Flaws, Security Loopholes Expose Ivanti's DevicesSupply chain security firm Eclypsium found corporate VPN maker Ivanti's Pulse Secure devices - which underwent much emergency patching amid a likely Chinese espionage zero-day hacking campaign - operate on an 11-year old version of Linux and use many obsolete software packages.

A newly disclosed security flaw in the Microsoft Defender SmartScreen has been exploited as a zero-day by an advanced persistent threat actor called Water Hydra (aka DarkCasino) targeting financial market traders

Trend Micro Research, News and Perspectives 2 years, 5 months ago

CVE-2024-21412: Water Hydra Targets Traders with Microsoft Defender SmartScreen Zero-Day

The APT group Water Hydra has been exploiting the zero-day Microsoft Defender SmartScreen vulnerability (CVE-2024-21412) in its campaigns targeting financial market traders. This vulnerability, which has now been patched by Microsoft, was discovered and disclosed by the Trend Micro Zero Day Initiative.