CVE-2019-1951 MEDIUM

CVE-2019-1951: Cisco SD-WAN Solution Packet Filtering Bypass Vulnerability

Vendor Cisco
Product Cisco SD-WAN Solution
Weakness CWE-20 · Input validation
Published August 8, 2019
Last update November 19, 2024

CVSS base score

5.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

What the vulnerability does

01Description

A vulnerability in the packet filtering features of Cisco SD-WAN Solution 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 target device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet in the network.

Key dates

02Disclosure timeline

August 8, 2019 CVE published
November 19, 2024 Record updated