Vulnerability · Published Dec 8, 2022 · Assigned by cisco
CVE-2022-20968
High 8.1
In plain English
A high-severity out-of-bounds write in Cisco Session Initiation Protocol (SIP) Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 6.4% (higher than 94% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Session Initiation Protocol (SIP) Software | 9.3(4) 3rd Party9.3(4)SR3 3rd Party9.3(4)SR1 3rd Party9.3(4)SR2 3rd Party11.5(1)11.7(1)11.0(0.7) MPP11.0(1) MPP |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H