Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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. To exploit this vulnerability through SNMPv3, the attacker must have valid SNMP user credentials for the affected system.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-02-25 | 1 | General1 |
| 2026-02-26 | 2 | Disclosure2 |
CVE-2026-20048 Authenticated SNMP DoS Vulnerability in Cisco Nexus 9000 Series Fabric Switches https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-20048
Post summary
The post references CVE-2026-20048, an authenticated SNMP DoS vulnerability in Cisco Nexus 9000 switches, but provides no evidence of PoC, exploit, active use, or mitigation.
🚨*CVE* CVE-2026-20048 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… https://www.cve.org/CVERecord?id=CVE-2026-20048 ----- Traducción: CVE-2026-20048 Una… http://infoflow.cloud`
Post summary
The post announces CVE-2026-20048, a vulnerability in Cisco Nexus 9000 SNMP subsystem that could allow authenticated remote access, and links to the official CVE record.
CVE-2026-20048 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… https://www.cve.org/CVERecord?id=CVE-2026-20048
Post summary
The text announces CVE‑2026‑20048, a vulnerability in the SNMP subsystem of Cisco Nexus 9000 switches in ACI mode that could allow authenticated remote exploitation, but it provides no PoC, exploit, patch, or evidence of active use.