CVE-2021-40112 CRITICAL

CVE-2021-40112: Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities

Vendor Cisco
Product Cisco Catalyst PON Series
Weakness CWE-284
Published November 4, 2021
Last update November 7, 2024
View on NVD All CVEs

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

Multiple vulnerabilities in the web-based management interface of the Cisco Catalyst Passive Optical Network (PON) Series Switches Optical Network Terminal (ONT) could allow an unauthenticated, remote attacker to perform the following actions: Log in with a default credential if the Telnet protocol is enabled Perform command injection Modify the configuration For more information about these vulnerabilities, see the Details section of this advisory.

Key dates

02Disclosure timeline

November 4, 2021 CVE published
November 7, 2024 Record updated