CVE-2021-40112

Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities

State: Published
Severity: 10.0 Critical
Published: Nov 4, 2021
Updated: Nov 7, 2024
Reserved: Aug 25, 2021

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	10.0 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H	cisco

Weaknesses

CWE-284

Affected Products

Product	Versions
Cisco Catalyst PON SeriesCisco	n/aAffected

References

20211103 Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilitiesvendor-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.