CVE-2024-20357

MediumCVSS 5.9/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

Affected software

VendorProductVersions
CiscoCisco IP Phones with Multiplatform Firmware11.3.1 MSR2-6; 11.3.1 MSR3-3; 11.3.2; 11.3.3; 11.3.1 MSR4-1; 11.3.4; 11.3.5; 11.3.3 MSR2; 11.3.3 MSR1; 11.3.6; 11-3-1MPPSR4UPG; 11.3.7; 11-3-1MSR2UPG; 11.3.6SR1; 11.3.7SR1; 11.3.7SR2; 11.0.0; 11.0.1; 11.0.1 MSR1-1; 11.0.2
CiscoCisco PhoneOS1.0.1; 2.1.1; 2.0.1; 2.3.1
ciscoip_phone_6871_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_6821_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_6851_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_7821_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_6861_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_6825_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_6841_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_7811_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_7841_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_7861_with_multiplatform_firmware<= 12.0.4
ciscoip_phone_8800_series_with_multiplatform_firmware<= 12.0.4
ciscovideo_phone_8875_firmware<= 12.0.4

References

Timeline

Published
May 1, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2024-20357: Medium severity, CVSS 5.9 | Vulnix