CVE-2021-1350

Cisco Umbrella Dashboard Packet Flood Vulnerability

Description

A vulnerability in the web UI of Cisco Umbrella could allow an unauthenticated, remote attacker to negatively affect the performance of this service. The vulnerability exists due to insufficient rate limiting controls in the web UI. An attacker could exploit this vulnerability by sending crafted HTTPS packets at a high and sustained rate. A successful exploit could allow the attacker to negatively affect the performance of the web UI. Cisco has addressed this vulnerability.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.35%
Vendor Advisory cisco.com
Affected: Cisco Cisco Umbrella Insights Virtual Appliance
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-1350?
CVE-2021-1350 has been scored as a medium severity vulnerability.
How to fix CVE-2021-1350?
To fix CVE-2021-1350, 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-2021-1350 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-1350 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-1350?
CVE-2021-1350 affects Cisco Cisco Umbrella Insights Virtual Appliance.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.