What is the severity of CVE-2022-20813?

The severity of CVE-2022-20813 is critical.

What are the vulnerabilities in CVE-2022-20813?

The vulnerabilities in CVE-2022-20813 include remote arbitrary file overwrite and null byte poisoning attacks.

How can a remote attacker exploit CVE-2022-20813?

A remote attacker can exploit CVE-2022-20813 by overwriting arbitrary files or conducting null byte poisoning attacks on an affected device.

Is there a fix available for CVE-2022-20813?

Yes, Cisco has released a security advisory with the necessary patches and fixes for CVE-2022-20813. Please refer to the Cisco Security Advisory for more details.

Vulnerability/
CVE-2022-20813

critical

CWE

295 158

6/7/2022

6/11/2024

CVE-2022-20813: Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities

Q: What is the affected software for CVE-2022-20813?

The affected software for CVE-2022-20813 is Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) up to and excluding x14.0.7.

First published: Wed Jul 06 2022(Updated: )

Multiple vulnerabilities in the API and in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow a remote attacker to overwrite arbitrary files or conduct null byte poisoning attacks on an affected device. Note: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device. For more information about these vulnerabilities, see the Details section of this advisory.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Expressway	<x14.0.7
Cisco TelePresence Video Communication Server	<x14.0.7

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-overwrite-3buqW8LH

Frequently Asked Questions

What is the severity of CVE-2022-20813?
The severity of CVE-2022-20813 is critical.
What is the affected software for CVE-2022-20813?
The affected software for CVE-2022-20813 is Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) up to and excluding x14.0.7.
What are the vulnerabilities in CVE-2022-20813?
The vulnerabilities in CVE-2022-20813 include remote arbitrary file overwrite and null byte poisoning attacks.
How can a remote attacker exploit CVE-2022-20813?
A remote attacker can exploit CVE-2022-20813 by overwriting arbitrary files or conducting null byte poisoning attacks on an affected device.
Is there a fix available for CVE-2022-20813?
Yes, Cisco has released a security advisory with the necessary patches and fixes for CVE-2022-20813. Please refer to the Cisco Security Advisory for more details.

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