CVE-2021-40113
high-risk
Published 2021-11-04
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.
Do I need to act?
!
13.7% chance of exploitation in next 30 days
EPSS score — higher than 86% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
10
CVSS 10.0/10
Critical
NETWORK
/ LOW complexity
Affected Products (5)
Affected Vendors
57
/ 100
high-risk
Severity
33/34 · Critical
Exploitability
12/34 · Low
Exposure
12/34 · Low