Critical Cisco NX-OS Flaws Threaten Nexus Switches
Cisco patched five critical NX-OS flaws that let unauthenticated attackers hit Nexus 3000 and 9000 switches.
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Product
Cisco Nexus 9000
- Mentions · 7d0
- Mentions · 30d2
- All mentions5
- First seenSep 3, 2026
- Last mentioned21d ago
Timeline
5 articles · newest firstCisco Nexus 3000 and 9000 Series Switches MPLS OAM Remote Code Execution Vulnerability
Crafted MPLS echo requests can yield unauthenticated root code execution on Cisco Nexus 3000 and 9000 switches.
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CVE-2026-20212: Cisco Nexus 9000 RCE Flaw
Cisco disclosed CVE-2026-20212, a critical unauthenticated remote code execution flaw in the Silicon One integration of Nexus 9000 switches.
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Cisco Fixed Critical RCE in Nexus 9000 Series Switches
Cisco patched CVE-2026-20212 (CVSS 9.8) in Silicon One-based Nexus 9000 switches, allowing unauthenticated remote root code execution via TCP ports 43210/43211.
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Cisco security advisory (AV26-876)
Canada's Cyber Centre relayed Cisco advisories covering a Nexus 9000 Silicon One RCE, IOS XR hardening, and denial-of-service flaws across IP phone lines.
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Related CVEs
by mentions- CVE-2026-20212<1%9.8Unauthenticated RCE in Cisco Nexus 9000 Switches with Silicon One Integration
Appears with
- Ciscovendor · 5
- Ciscoorganization · 3
- Cisco Nexus 3000product · 2
- Silicon Oneproduct · 2
- Cisco NX-OSproduct · 2
- Cisco IP Phone 7800/8800product · 1
- Cisco Desk Phone 9800product · 1
- NX-OSproduct · 1
- Cisco IOS XRproduct · 1
- Canadian Centre for Cyber Securityorganization · 1
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