CVE-2026-42491 is a vulnerability tracked by ThreatCluster, appearing in 2 threat clusters built from 3 intelligence report mentions.
CVE-2026-42491 is a vulnerability tracked across 2 threat clusters and 3 intelligence report mentions on ThreatCluster. First observed July 29, 2026; most recent activity July 30, 2026.
On July 28, 2026, the Xen Project released 12 security advisories addressing severe vulnerabilities, including three that allow guest virtual machines to escape to the host. These vulnerabilities, identified as…
On July 28, 2026, the Xen Project released multiple security advisories (XSA-508 to XSA-494) addressing vulnerabilities in their virtualization platform. Key vulnerabilities include CVE-2026-62434, which involves a…
CVE-2026-42491 is a vulnerability tracked by ThreatCluster, appearing in 2 threat clusters built from 3 intelligence report mentions.
The most recent intelligence report mentioning CVE-2026-42491 on ThreatCluster is dated July 30, 2026. Activity was first observed July 29, 2026, giving a tracked span from then to July 30, 2026.
Across ThreatCluster reporting, CVE-2026-42491 most frequently co-occurs with CVE-2013-1432, CVE-2013-1442, CVE-2013-1918, CVE-2013-2211, CVE-2013-2212, among 12 tracked related entities.
The most significant recent cluster is “Xen Hypervisor Patches 12 Critical Vulnerabilities, Immediate Action Required” (2 articles · Updated July 30, 2026). CVE-2026-42491 appears across 2 threat clusters in total, listed above with sources.
CVE-2026-42491 appears in 3 intelligence report mentions across 2 deduplicated threat clusters, aggregated from 17,000+ monitored sources.