Cisco Switches Vulnerabilities & Security Advisories
23 advisories tracked · Cisco Security Advisories · 0 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Cisco advisory that VulniPulse classified as Switches, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 2 critical, 8 high, 11 medium.
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Cisco Security Advisories
Polled via the official Cisco PSIRT RSS feed. Advisory pages are fetched for new items to extract fixed software and workarounds.
Latest Cisco Switches advisories
Critical [CVE-2026-20322 +5] Cisco Nexus Dashboard Software Security Hardening Release: September 2026
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Nexus Dashboard engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching and streamline the disclosure process, Cisco has grouped these issues by their underlying vulnerability class — Common Weakness Enumeration (CWE) — and assigned a single Common Vulnerabilities and Exposures identifier (CVE ID). Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.
Critical [CVE-2026-20212] Cisco Nexus 9000 Series Switches Silicon One Remote Code Execution Vulnerability
A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 (L3) virtual routing and forwarding (VRF). A successful exploit could allow the attacker to connect to an affected device and send crafted input that could be executed as code with root privileges. The exploitation of this vulnerability could also cause the S1HAL process to crash, which could cause the device to reload. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. Affected products named by the advisory: NX-OS Software.