CVE-2019-1761 MEDIUM

CVE-2019-1761: Cisco IOS and IOS XE Software Hot Standby Router Protocol Information Leak Vulnerability

Vendor Cisco
Product Cisco IOS and IOS XE Software
Weakness CWE-665
Published March 28, 2019
Last update November 21, 2024
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the Hot Standby Router Protocol (HSRP) subsystem of Cisco IOS and IOS XE Software could allow an unauthenticated, adjacent attacker to receive potentially sensitive information from an affected device. The vulnerability is due to insufficient memory initialization. An attacker could exploit this vulnerability by receiving HSRPv2 traffic from an adjacent HSRP member. A successful exploit could allow the attacker to receive potentially sensitive information from the adjacent device.

Key dates

02Disclosure timeline

March 28, 2019 CVE published
November 21, 2024 Record updated