Vulnerability Description
Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause Cisco Discovery Protocol memory corruption on an affected device. These vulnerabilities are due to missing length validation checks when processing Cisco Discovery Protocol messages. 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 cause an out-of-bounds read of the valid Cisco Discovery Protocol packet data, which could allow the attacker to cause corruption in the internal Cisco Discovery Protocol database of the affected device.
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-2022-20689?
CVE-2022-20689 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Multiple vulnerabilities in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause Cisco Discov...
How severe is CVE-2022-20689?
CVE-2022-20689 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-2022-20689?
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.