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Vulnerability record · public intelligence
CVE-2026-20212
CRITICAL
Cisco Nexus 3000 and 9000 Series Switches Silicon One Hardware Abstraction Layer Remote Code Execution Vulnerability
Published Sep 2, 2026 · Updated Oct 23, 2026
Severity · CVSSCRITICAL · 9.8
Known exploitationNot listed
EPSS / likelihood0.72%
QFinch risk score20 / 100
Original summary
Normalized public record · Updated Oct 23, 2026
Cisco Nexus 3000 and 9000 Series Switches Silicon One Hardware Abstraction Layer Remote Code Execution Vulnerability
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
CVENVDEPSS
- SSVC priority
- MEDIUM
- Confidence
- 20%
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Sep 2, 2026 · Last refreshed Oct 23, 2026