Microsoft disclosed CVE-2026-50380, a critical heap-based buffer overflow in Windows GDI+ that enables remote code execution over a network with a 9.6 CVSS score. The flaw affects numerous Windows 10 and 11 releases and is being patched as part of the July 2026 Patch Tuesday.
Zero Day Initiative explicitly labels the issue a Windows GDI+ Remote Code Execution Vulnerability and states there is no known exploitation in the wild.
Enterprise security teams should prioritize this Patch Tuesday release, as the network-attack vector and high impact score make it a prime target for opportunistic threat actors.
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Microsoft has disclosed CVE-2026-83947, a CVSS 7.7 HIGH spoofing vulnerability in Azure Event Grid caused by missing authorization. Microsoft says it has already fully mitigated the cloud-service flaw and customers have nothing to do.
A critical vulnerability CVE-2026-77900 affects Microsoft Azure App Service for Linux with a CVSS score of 9.8. The flaw allows an unauthenticated attacker to execute code over the network. Microsoft says it has already fully mitigated the flaw; no customer action is needed.
Microsoft Dataverse is affected by critical vulnerability CVE-2026-88131, which allows remote code execution. The flaw scores 9.8 on CVSS; Microsoft says it has already fully mitigated it and customers have nothing to patch.
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 contain critical authentication bypass flaw CVE-2026-16823. The NVD rates it 9.1 and warns of remote exploitation without credentials.
Red Hat OpenShift Container Platform 4 is affected by CVE-2026-93017, a high-severity flaw that lets attackers read every secret in every namespace. The 7.7 CVSS score reflects broad access granted through an unrestricted ClusterRole on the insights-operator-gather service account.
