CVE-2026-21510 is a vulnerability tracked across 8 threat clusters and 15 intelligence report mentions on ThreatCluster. First observed February 10, 2026; most recent activity April 30, 2026.
ConnectWise ScreenConnect has been compromised by two critical vulnerabilities, CVE-2024-1708 and CVE-2024-1709, which allow attackers to bypass authentication and execute remote code. The vulnerabilities were disclosed…
A security researcher, known as Chaotic Eclipse, has publicly released exploit code for a zero-day vulnerability in Windows, dubbed BlueHammer, allowing local privilege escalation to SYSTEM or elevated administrator…
A newly discovered vulnerability, CVE-2026-6770, allows attackers to fingerprint users of Firefox and Tor browsers, even in Private Browsing mode. The flaw, identified in the IndexedDB API, enables the creation of a…
Researchers have discovered a vulnerability in Notepad's newly added Markdown support that can be exploited for remote code execution (RCE). This flaw, tracked as CVE-2026-20841 with a severity score of 8.8, was…
On February 10, 2026, Microsoft released a security update addressing 59 vulnerabilities, including six zero-day flaws that were actively exploited prior to the patch. The vulnerabilities affect various Microsoft…
Microsoft has released updates to address a critical zero-day vulnerability in Windows Shell, tracked as CVE-2026-21510, which is actively being exploited. This security flaw allows remote attackers to bypass essential…
On February 10, 2026, Microsoft released an urgent patch for a zero-day vulnerability in Windows Shell, identified as CVE-2026-21510. This vulnerability is actively exploited, affecting users of Windows operating…
On February 10, 2026, Adobe and Microsoft released security patches addressing numerous vulnerabilities, including 36 CVEs published on the same day. Notably, three CVEs (CVE-2026-21510, CVE-2026-21514, and…