CVE-2020-3444

HIGH

Cisco SD-WAN Software - Auth Bypass

Title source: llm
STIX 2.1

Description

A vulnerability in the packet filtering features of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a targeted device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet into the network.

References (1)

Core 1

Scores

CVSS v3 7.5
EPSS 0.0078
EPSS Percentile 73.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (1)
cisco/ios_xe < 16.12.2r
Published Nov 06, 2020
Tracked Since Feb 18, 2026