A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol (ARP) entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper validation of a received gratuitous ARP (GARP) request. An attacker could exploit this vulnerability by sending a malicious GARP packet on the local subnet to cause the ARP table on the device to become corrupted. A successful exploit could allow the attacker to populate the ARP table with incorrect entries, which could lead to traffic disruptions.
Published 2020-02-26 17:15:14
Updated 2020-03-03 20:46:39
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2020-3174

0.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 23 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-3174

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.3
LOW AV:A/AC:L/Au:N/C:N/I:P/A:N
6.5
2.9
NIST
4.7
MEDIUM CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
2.8
1.4
Cisco Systems, Inc.
4.7
MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
2.8
1.4
NIST

CWE ids for CVE-2020-3174

References for CVE-2020-3174

Products affected by CVE-2020-3174

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