What is CVE-2021-1377?

CVE-2021-1377 is a medium-severity vulnerability in Cisco Ios, classified under CWE-399. CVSS score: 5.8/10. Published 2021-03-24.

How severe is CVE-2021-1377?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Vulnerability in Cisco Ios

CVE-2021-1377

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 o…

EPSS: 0.014 (70.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.

Affected products

Cisco Ios — versions n/a
Cisco Ios — versions 12.2\(6\)i1, 15.1\(3\)svr1, 15.1\(3\)svr2
Cisco Ios_xe — versions 3.6.6e, 3.6.7ae, 3.6.7be

Weakness classification (CWE)

CWE-399

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1377?: CVE-2021-1377 is a medium-severity vulnerability in Cisco Ios, classified under CWE-399. CVSS score: 5.8/10. Published 2021-03-24.
How severe is CVE-2021-1377?: Medium severity. CVSS v3 base score is 5.8 out of 10.