CVE-2020-3516

Cisco IOS XE Software Web UI Improper Input Validation Vulnerability

Description

A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.54%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS XE Software
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-WEB-UI-exNFmcPO vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-3516?
CVE-2020-3516 has been scored as a medium severity vulnerability.
How to fix CVE-2020-3516?
To fix CVE-2020-3516, 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-2020-3516 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-3516 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-3516?
CVE-2020-3516 affects Cisco Cisco IOS XE Software.
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