CVE-2022-20687
5.3 · MEDIUMOverview
CVE-2022-20687 is a medium-severity vulnerability affecting cisco ata_190_firmware. It was published on December 12, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device and cause the LLDP service to restart.
These vulnerabilities are due to missing length validation of certain LLDP packet header fields. An attacker could exploit these vulnerabilities by sending a malicious LLDP packet to an affected device. A successful exploit could allow the attacker to execute code on the affected device and cause LLDP to restart unexpectedly, resulting in a denial of service (DoS) condition.
Remediation
Check the references section for vendor advisories and patches from cisco. Update ata_190_firmware 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 | ata_191_firmware | >= 0, < 11.2.2 | Affected |
| cisco | ata_192_firmware | >= 0, < 11.2.2 | Affected |
Frequently Asked Questions
What is CVE-2022-20687?
CVE-2022-20687 is a medium-severity vulnerability affecting cisco ata_190_firmware. It was published on December 12, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2022-20687?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2022-20687?
Check the references section for vendor advisories and patches from cisco. Update ata_190_firmware 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-2022-20687?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-20687 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
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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