Vulnerability Description
A vulnerability in the Cisco Discovery Protocol 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 Cisco Discovery Protocol service to restart. This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to execute code on the affected device and cause Cisco Discovery Protocol to restart unexpectedly, resulting in a DoS condition.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ata 190 Firmware | - |
| Cisco | Ata 190 | - |
| Cisco | Ata 191 Firmware | < 11.2.2 |
| Cisco | Ata 191 | - |
| Cisco | Ata 192 Firmware | < 11.2.2 |
| Cisco | Ata 192 | - |
Related Weaknesses (CWE)
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ci
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ci
FAQ
What is CVE-2022-20688?
CVE-2022-20688 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to execute arbitrary code on an ...
How severe is CVE-2022-20688?
CVE-2022-20688 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-20688?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ata 190 Firmware, Cisco Ata 190, Cisco Ata 191 Firmware, Cisco Ata 191, Cisco Ata 192 Firmware.