CVE-2025-20111
A vulnerability in the health monitoring diagnostics of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, adjacent attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of specific Ethernet frames. An attacker could exploit this vulnerability by sending a sustained rate of crafted Ethernet frames to an affected device. A successful exploit could allow the attacker to cause the device to reload.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.4
- CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- EPSS probability
- 0.32%
- CWE
- CWE-1220
- Published
- 2025-02-26
- Last modified
- 2026-03-12
Affected products
- Cisco Cisco NX-OS Software
- Cisco Cisco NX-OS Software
- Cisco Cisco NX-OS Software
- Cisco Cisco NX-OS Software
- Cisco Cisco NX-OS Software
- Cisco Cisco NX-OS Software
- Cisco Cisco NX-OS Software
- Cisco Cisco NX-OS Software
Weakness type
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