CVE Catalog

CVE-2015-4226

High
Published: Translated: NVD NIST

Summary

The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, allowing remote attackers to cause a denial of service (device hang) by sending malformed RTP packets after a call is answered.

Risk Assessment

Attackers can exploit this vulnerability to disrupt phone functionality, leading to communication outages within the organization.

Recommendation

It is recommended to update the firmware of Cisco 9900 phones to the latest version to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which allows remote attackers to cause a denial of service (device hang) by sending malformed RTP packets after a call is answered, aka Bug ID CSCur39976.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS