Vulnerability · Published May 1, 2024 · Assigned by cisco

CVE-2024-20357

Medium 5.9

In plain English

A medium-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 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.5%top 57.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability in the XML service of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to initiate phone calls on an affected device. This vulnerability exists because bounds-checking does not occur while parsing XML requests. An attacker could exploit this vulnerability by sending a crafted XML request to an affected device. A successful exploit could allow the attacker to initiate calls or play sounds on the device.

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:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References