cvedb.io
CVE-2026-20048
HIGH · CVSS 7.7
EPSS exploitation probability: 0%
Published 2026-02-25T17:25:25.620 · Last modified 2026-06-17T10:16:58.487

Summary

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper processing when parsing SNMP requests. An attacker could exploit this vulnerability by continuously sending SNMP queries to a specific MIB of an affected device. A successful exploit could allow the attacker to cause a kernel panic on the device, resulting in a reload and a DoS condition. Note: This vulnerability affects SNMP versions 1, 2c, and 3. To exploit this vulnerability through SNMPv1 or SNMPv2c, the attacker must have a valid read-only SNMP community string for the affected system

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.