CVE-2021-40112

Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities

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.

Category

10.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.35% Top 20%
Vendor Advisory cisco.com
Affected: Cisco Cisco Catalyst PON Series
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catpon-multivulns-CE3DSYGr patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-40112?
CVE-2021-40112 has been scored as a critical severity vulnerability.
How to fix CVE-2021-40112?
To fix CVE-2021-40112, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-40112 being actively exploited in the wild?
It is possible that CVE-2021-40112 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-40112?
CVE-2021-40112 affects Cisco Cisco Catalyst PON Series.
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