CVE-2020-3516 MEDIUM

CVE-2020-3516: Cisco IOS XE Software Web UI Improper Input Validation Vulnerability

Vendor Cisco
Product Cisco IOS XE Software
Weakness CWE-20 · Input validation
Published September 24, 2020
Last update November 13, 2024

CVSS base score

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

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server.

Key dates

02Disclosure timeline

September 24, 2020 CVE published
November 13, 2024 Record updated