CVE-2022-20813
9.0 · CRITICALOverview
CVE-2022-20813 is a critical-severity vulnerability affecting cisco expressway. It was published on July 6, 2022 and has a CVSS 3.1 base score of 9.0 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from cisco. Update expressway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | expressway | >= 0, < x14.0.7 | Affected |
| cisco | telepresence_video_communication_server | >= 0, < x14.0.7 | Affected |
Frequently Asked Questions
What is CVE-2022-20813?
CVE-2022-20813 is a critical-severity vulnerability affecting cisco expressway. It was published on July 6, 2022 and has a CVSS 3.1 base score of 9.0 (CRITICAL).
How severe is CVE-2022-20813?
This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2022-20813?
Check the references section for vendor advisories and patches from cisco. Update expressway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-20813?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-20813 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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