CISA Adds One Known Exploited Vulnerability to Catalog
CISA adds CVE-2026-76504, a Cisco Catalyst SD-WAN vulnerability, to its KEV Catalog.
CISA has added CVE-2026-76504, a hex encoding vulnerability in Cisco Catalyst SD-WAN Manager, to its Known Exploited Vulnerabilities (KEV) Catalog due to evidence of active exploitation. This addition mandates Federal Civilian Executive Branch (FCEB) agencies to prioritize its remediation under Binding Operational Directive (BOD) 26-04, which emphasizes risk-based vulnerability management for publicly exposed assets. CISA encourages all organizations to adopt similar practices.
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The lesson from this incident
Full lessonA hex encoding vulnerability (CVE-2026-76504) in Cisco Catalyst SD-WAN Manager has been added to CISA's Known Exploited Vulnerabilities Catalog following evidence of active exploitation in the wild. This means threat actors are already leveraging this flaw, making unpatched systems an immediate and tangible risk rather than a theoretical one. Federal agencies are now mandated to remediate this vulnerability under Binding Operational Directive BOD 26-04, underscoring the critical importance of timely, risk-based patch management. Organizations that lack structured vulnerability prioritization programs are disproportionately exposed when widely-used network management platforms like SD-WAN controllers become active attack targets.
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- Automated patch management
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Indicators of Compromise
Extracted by AI from the linked source. Not reviewed by an editor. How this works
- cve — CVE-2026-76504