CVE-2022-20691 - CVE House
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Status published Medium CVE-2022-20691

A vulnerability in the Cisco Discovery Protocol functionality of Cisco...

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Cisco Analog Telephone Adaptor (ATA) Software
Vulnerable Versions:
1.2.1, 1.2.2 SR1, 1.2.2, 1.2.2 SR2, 11.1.0 MSR4, 11.1.0, 11.1.0 MSR1, 11.1.0 MSR2, 11.1.0 MSR3, 1.1.0, 1.1.1, 1.1(4), 1.1.2, 2.1(6), 2.1(5), 2.16(2), 2.16(1), 3.2(0), 3.2(4), 3.2(3), 3.2(1), 2.15, 2.14, 1.34, 1.0(0), 3.1(1), 3.1(0), 3.1(2), 3.0(0), 9.2(3), 9.2(1), 9.0(3), 12.0.1 SR2, 12.0.1, 12.0.1 SR1, 12.0.1 SR3, 12.0.1 SR4, 11.2.1

Timeline

Official Publish: December 7th, 2022
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)