CISA Adds Four Known Exploited Vulnerabilities to Catalog
CISA adds four actively exploited vulnerabilities to its KEV Catalog.
Summary
CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, indicating evidence of active exploitation. These include two for SonicWall SMA1000 Appliances and two for Microsoft products (Active Directory Federation Services and SharePoint Server). The announcement reinforces the importance of CISA's Binding Operational Directive (BOD) 26-04, which mandates federal agencies prioritize patching these high-risk vulnerabilities on public-facing assets.
Full text
Alert CISA Adds Four Known Exploited Vulnerabilities to Catalog Release DateJuly 14, 2026 CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-15409 SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability CVE-2026-15410 SonicWall SMA1000 Appliances Code Injection Vulnerability CVE-2026-56155 Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability CVE-2026-56164 Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV Catalog? Submit it for potential addition through CISA’s KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance. This product is provided subject to this Notification and this Privacy & Use policy. Please share your thoughts We recently updated our anonymous product survey; we welcome your feedback.
Indicators of Compromise
- cve — CVE-2026-15409
- cve — CVE-2026-15410
- cve — CVE-2026-56155
- cve — CVE-2026-56164