VDB
CVE-2021-1377
CVE-2021-1377
PUBLISHED
CVSS 5.800000190734863 MEDIUM
A vulnerability in Address Resolution Protocol (ARP) management of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent an affected device from resolving ARP entries for legitimate hosts on the connected subnets. This vulnerability exists because ARP entries are mismanaged. An attacker could exploit this vulnerability by continuously sending traffic that results in incomplete ARP entries. A successful exploit could allow the attacker to cause ARP requests on the device to be unsuccessful for legitimate hosts, resulting in a denial of service (DoS) condition.
EPSS 1.43% · 70.9th percentile
Risk Scores
CVSS 3.1
5.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
EPSS Score
1.43%
70.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| cisco | ios_xe | 16.6.8, 3.6.7e, 3.6.8e |
| cisco | ios | *, 12.2\(6\)i1, 15.1\(3\)svr1 |
| Cisco | Cisco IOS | n/a |
Timeline
- Mar 24, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Dec 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 1, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 3, 2022 EPSS Score
- Sep 6, 2022 EPSS Score
- Nov 8, 2022 EPSS Score