Vulnerability · Published May 1, 2024 · Assigned by cisco

CVE-2024-20376

High 7.5

In plain English

A high-severity out-of-bounds write in Cisco IP Phones with Multiplatform Firmware from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.9%top 40.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability in the web-based management interface of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a DoS condition. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

Affected products (as reported)

VendorProductVersions
Cisco Cisco IP Phones with Multiplatform Firmware 11.3.1 MSR2-611.3.1 MSR3-311.3.211.3.311.3.1 MSR4-111.3.411.3.511.3.3 MSR2
Cisco Cisco PhoneOS 1.0.12.1.12.0.12.3.1

Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References