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Nexus 3000
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- 1Cisco warns of critical unauthenticated root flaws in Nexus switches●Cisco October advisory: 18 CVEs, 7 critical, no workarounds for any of them. NX-OS NGOAM: CVE-2026-76485/76486/76501 — a
Cisco's October security advisory covers 18 vulnerabilities, seven of them rated critical, with no workarounds available for any of them. The most severe issues in NX-OS — CVE-2026-76485, CVE-2026-76486 and CVE-2026-76501 — score 9.8 and allow unauthenticated root remote code execution via crafted IP packets on Nexus 3000 and 9000 switches, but only when NGOAM is enabled with SRv6 or NV Overlay. Administrators are urged to check exposure and patch promptly.
- 2Cisco fixes seven critical flaws in Nexus switches●Seven critical CVEs across two product lines. None exploited yet. No workarounds exist. Here's the fast triage. NX-OS NG
Cisco's Nexus 3000 and 9000 series switches are affected by seven newly disclosed critical vulnerabilities across two product lines, including three CVSS 9.8 unauthenticated remote code execution flaws in NX-OS NGOAM (VXLAN OAM). None of the flaws have been exploited in the wild so far, and no workarounds are available, making prompt patching the only defence.