CVE-2022-20968 - CVE House
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Status published High CVE-2022-20968

A vulnerability in the Cisco Discovery Protocol processing feature of...

Vulnerability Description

A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an affected device. This vulnerability is due to insufficient input validation of received Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol traffic to an affected device. A successful exploit could allow the attacker to cause a stack overflow, resulting in possible remote code execution or a denial of service (DoS) condition on an affected device.

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 Session Initiation Protocol (SIP) Software
Vulnerable Versions:
9.3(4) 3rd Party, 9.3(4)SR3 3rd Party, 9.3(4)SR1 3rd Party, 9.3(4)SR2 3rd Party, 11.5(1), 11.7(1), 11.0(0.7) MPP, 11.0(1) MPP, 11.0(1), 11.5(1)SR1, 11-0-1MSR1-1, 10.4(1) 3rd Party, 10.3(1.11) 3rd Party, 10.2(2), 10.2(1)SR1, 10.1(1.9), 10.1(1)SR2, 10.2(1), 10.1(1)SR1, 10.4(1)SR2 3rd Party, 10.3(1), 10.3(1)SR4b, 10.3(1)SR5, 10.3(1.9) 3rd Party, 10.3(2), 10.3(1)SR4, 10.3(1)SR2, 10.3(1)SR3, 10.3(1)SR1, 12.6(1), 12.1(1), 12.5(1)SR1, 12.5(1)SR2, 12.5(1), 12.5(1)SR3, 12.6(1)SR1, 12.7(1), 12.1(1)SR1, 12.0(1), 12.0(1)SR2, 12.0(1)SR1, 12.0(1)SR3, 12.8(1), 12.8(1)SR1, 12.8(1)SR2, 10.3(1)SR6, 10.3(1)SR7, 12.7(1)SR1, 14.0(1)SR1, 14.0(1), 14.0(1)SR2, 14.0(1)SR3, 14.1(1), 14.1(1)SR1

Timeline

Official Publish: December 8th, 2022
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

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

Weaknesses (CWE)