What CISOs need to know: CISA Adds Four Known Exploited Vulnerabilities to Catalog
A breach signal from CISA Cybersecurity Advisories - and what compliance teams should do this week.
Published 2026-07-22
# What CISOs need to know: CISA Adds Four Known Exploited Vulnerabilities to Catalog
What happened
<p>CISA has added four new vulnerabilities to its <a href="https://www.cisa.gov/known-exploited-vulnerabilities-catalog">Known Exploited Vulnerabilities (KEV) Catalog</a>, based on evidence of active exploitation.</p> <ul> <li><a href="https://www.cve.org/CVERecord?id=CVE-2021-27137" target="_blank">CVE-2021-27137</a> DD-WRT Stack-Based Buffer Overflow Vulnerability</li> <li><a href="https://www.cve.org/CVERecord?id=CVE-2026-0770" target="_blank">CVE-2026-0770</a> Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability </li> <li><a href="https://www.cve.org/CVERecord?id=CVE-2026-63030" target="_blank">CVE-2026-63030</a> WordPress Core Interpretation Conflict Vulnerability </li> <li><a href="https://www.cve.org/CVERecord?id=CVE-2026-60137" target="_blank">CVE-2026-60137</a> WordPress Core SQL Injection Vulnerability</li> </ul> <p>These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.</p> <p><a href="https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk">Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk</a> 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.</p> <p>While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of <a href="https://www.cisa.gov/known-exploited-vulnerabilities-catalog">KEV Catalog vulnerabilities</a>. CISA will continue to add vulnerabilities to the catalog that meet the <a href="https://www.cisa.gov/known-exploited-vulnerabilities-catalog/reducing-significant-risk-known-exploited-vulnerabilities">specified criteria</a>.</p> <p>Aware of an exploited vulnerability not currently listed in the KEV Catalog? Submit it for potential addition through CISA’s <a href="https://cisasurvey.gov1.qualtrics.com/jfe/form/SV_1Zwu52kgK2OYf3w" target="_blank">KEV Nomination Form</a>. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance. </p>
Source: CISA Cybersecurity Advisories
Why it matters
This signal sits squarely in the 16-framework compliance coverage (NIS2 / SOC 2 / ISO 27001 / HIPAA / PCI DSS) territory. CISOs and compliance leads at mid-market EU/US organisations should map it to their control set within the next 7-14 days.
What to do this week
1. Read the source advisory in full and identify whether your environment is in scope. 2. Check existing controls against the requirement / vulnerability. 3. Document evidence of remediation or non-applicability - auditors will ask.
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