#cisa20260721

🚨 [CISA-2026:0721] CISA Adds 4 Known Exploited Vulnerabilities to Catalog (https://secdb.nttzen.cloud/security-advisory/detail/CISA-2026:0721)

CISA has added 4 new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the federal enterprise.

⚠️ CVE-2021-27137 (https://secdb.nttzen.cloud/cve/detail/CVE-2021-27137)

• Name: DD-WRT Stack-Based Buffer Overflow Vulnerability
• 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.
• Known To Be Used in Ransomware Campaigns? Unknown
• Vendor: DD-WRT
• Product: DD-WRT
• Notes: This vulnerability affects a common open-source component, third-party library, proprietary implementation, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://svn.dd-wrt.com/changeset/45724 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2021-27137

⚠️ CVE-2026-0770 (https://secdb.nttzen.cloud/cve/detail/CVE-2026-0770)

• Name: Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability
• 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.
• Known To Be Used in Ransomware Campaigns? Unknown
• Vendor: Langflow
• Product: Langflow
• Notes: https://github.com/langflow-ai/langflow/releases/tag/v1.9.0 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-0770

⚠️ CVE-2026-60137 (https://secdb.nttzen.cloud/cve/detail/CVE-2026-60137)

• Name: WordPress Core SQL Injection Vulnerability
• 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.
• Known To Be Used in Ransomware Campaigns? Unknown
• Vendor: WordPress
• Product: Core
• Notes: https://wordpress.org/news/2026/07/wordpress-7-0-2-release/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-60137

⚠️ CVE-2026-63030 (https://secdb.nttzen.cloud/cve/detail/CVE-2026-63030)

• Name: WordPress Core Interpretation Conflict Vulnerability
• 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.
• Known To Be Used in Ransomware Campaigns? Unknown
• Vendor: WordPress
• Product: Core
• Notes: https://wordpress.org/news/2026/07/wordpress-7-0-2-release/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-63030

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