On July 14, 2026, CISA added 4 vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: CVE-2026-56155, CVE-2026-56164, CVE-2026-15409, CVE-2026-15410. A KEV listing means CISA has evidence of active exploitation. CISA sets a remediation due date for US federal civilian agencies under its binding operational directives; any organization running the affected products should treat these as patch-now priorities.
CVE-2026-56155: Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
Microsoft · Active Directory Federation Services
Microsoft Active Directory Federation Services contains an insufficient granularity of access control vulnerability that allows an authorized attacker to elevate privileges locally.
Federal due date
2026-07-28
Ransomware use
Unknown
Added
2026-07-14
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CVE-2026-56164: Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability
Microsoft · SharePoint Server
Microsoft SharePoint contains a missing authentication for critical function vulnerability that allows an unauthorized attacker to elevate privileges over a network.
Federal due date
2026-07-17
Ransomware use
Unknown
Added
2026-07-14
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
SonicWall SMA1000 Appliances contain a server-side request forgery vulnerability that could allow a remote unauthenticated attacker to potentially cause the appliance to make requests to unintended location.
Federal due date
2026-07-17
Ransomware use
Known
Added
2026-07-14
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
SonicWall SMA1000 Appliances contain a code injection vulnerability which in specific conditions could potentially enable a remote authenticated attacker as administrator to execute arbitrary OS commands.
Federal due date
2026-07-17
Ransomware use
Known
Added
2026-07-14
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
July 29, 2026: CVE-2026-20316, Cisco Secure Firewall Management Center (FMC) (Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability)
July 27, 2026: CVE-2026-16812, Arista VeloCloud Orchestrator (Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability)
July 27, 2026: CVE-2025-68686, Fortinet FortiOS (Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vuln)
July 22, 2026: CVE-2026-50522, Microsoft SharePoint (Microsoft SharePoint Deserialization of Untrusted Data Vulnerability )
July 22, 2026: CVE-2026-16232, Check Point SmartConsole (Check Point SmartConsole Improper Authentication Vulnerability)