CISA Adds Four Known Exploited Vulnerabilities to Catalog
CISA adds four actively exploited vulnerabilities to KEV Catalog including Lantronix and Ubiquiti flaws.
Summary
CISA has added four newly discovered vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on active exploitation evidence: CVE-2025-67038 (Lantronix EDS5000 code injection), CVE-2026-34908, CVE-2026-34909, and CVE-2026-34910 (all Ubiquiti UniFi OS flaws including improper access control, path traversal, and input validation issues). The announcement reinforces Binding Operational Directive (BOD) 26-04, which mandates that Federal Civilian Executive Branch agencies prioritize rapid remediation of KEV-listed vulnerabilities on publicly exposed assets, with CISA encouraging all organizations to adopt similar risk-based vulnerability management practices.
Full text
Alert CISA Adds Four Known Exploited Vulnerabilities to Catalog Release DateJune 23, 2026 CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-67038 Lantronix EDS5000 Code Injection Vulnerability CVE-2026-34908 Ubiquiti UniFi OS Improper Access Control Vulnerability CVE-2026-34909 Ubiquiti UniFi OS Path Traversal Vulnerability CVE-2026-34910 Ubiquiti UniFi OS Improper Input Validation Vulnerability These types of vulnerabilities are frequent attack vectors 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-2025-67038
- cve — CVE-2026-34908
- cve — CVE-2026-34909
- cve — CVE-2026-34910