CVE-2026-0509 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
CVE-2026-0509 is a vulnerability tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed February 11, 2026; most recent activity February 11, 2026.
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…
CVE-2026-0509 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
The most recent intelligence report mentioning CVE-2026-0509 on ThreatCluster is dated February 11, 2026.
Across ThreatCluster reporting, CVE-2026-0509 most frequently co-occurs with Data Breach, Denial of Service, Malware, Phishing, AWS, among 12 tracked related entities.
The most significant recent cluster is “Critical Windows Shell Zero-Day Vulnerability Exploited” (5 articles · Updated February 11, 2026). CVE-2026-0509 appears across 1 threat cluster in total, listed above with sources.
CVE-2026-0509 appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.