Feed/CVE-2021-40113
CVE-2021-40113CRITICALCVSS 10.0

CVE-2021-40113

Published Nov 4, 2021·Updated Jun 16, 2026

NVD 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.

Public Exploits & PoCs1 found

CVSS Vector

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

References

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