Vulnerability Description
A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of an affected device. This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust available memory and cause the service to restart. Cisco has released firmware updates that address this vulnerability.
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-2022-20691?
CVE-2022-20691 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of ...
How severe is CVE-2022-20691?
CVE-2022-20691 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-2022-20691?
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.