What is CVE-2020-3359?

CVE-2020-3359 is a high-severity vulnerability in Cisco 2610xm, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2020-09-24.

How severe is CVE-2020-3359?

High severity. CVSS v3 base score is 8.6 out of 10.

Is CVE-2020-3359 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Cisco 2610xm

CVE-2020-3359

A vulnerability in the multicast DNS (mDNS) feature of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper validation of mDNS packets. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device. A successful exploit could cause a device to reload, resulting in a DoS condition.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.015 (71.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

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

Frequently asked questions

What is CVE-2020-3359?: CVE-2020-3359 is a high-severity vulnerability in Cisco 2610xm, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2020-09-24.
How severe is CVE-2020-3359?: High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2020-3359 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.