CVE-2021-34723

Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability

Description

A vulnerability in a specific CLI command that is run on Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the configuration database of an affected device. This vulnerability is due to insufficient validation of specific CLI command parameters. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of the configuration database and gain root-level access to an affected device.

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS XE Software
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-34723?
CVE-2021-34723 has been scored as a medium severity vulnerability.
How to fix CVE-2021-34723?
To fix CVE-2021-34723, 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-2021-34723 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-34723 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-2021-34723?
CVE-2021-34723 affects Cisco Cisco IOS XE Software.
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