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Medium severity · published Dec 12, 2022
CVE-2022-20691
A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to…
6.5
CVSS
0.7%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A1
Ata 190 Firmware · Cisco
All versions, or not specified · source: NVD
A1
Ata 191 Firmware · Cisco
before 11.2.2; before 12.0.1; 12.0.1; 12.0.1; 12.0.1; 12.0.1; +1 more · source: NVD
A1
Ata 192 Firmware · Cisco
before 11.2.2 · source: NVD
Affected product
A1
Ata 190 Firmware
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-20691
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-20691
sec.cloudapps.cisco.com
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multivuln-GEZYVvs
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