CVE-2019-1741 HIGH

CVE-2019-1741: Cisco IOS XE Software Encrypted Traffic Analytics Denial of Service Vulnerability

Vendor Cisco
Product Cisco IOS XE Software
Weakness CWE-20 · Input validation
Published March 27, 2019
Last update November 19, 2024

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the Cisco Encrypted Traffic Analytics (ETA) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a logic error that exists when handling a malformed incoming packet, leading to access to an internal data structure after it has been freed. An attacker could exploit this vulnerability by sending crafted, malformed IP packets to an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition.

Key dates

02Disclosure timeline

March 27, 2019 CVE published
November 19, 2024 Record updated