CVE-2013-1176: Cisco Telepresence Mcu 4500 Series Software

High severity, CVSS 7.1. EPSS: 1.2% chance of exploitation in the next 30 days.

The DSP card on Cisco TelePresence MCU 4500 and 4501 devices before 4.3(2.30), TelePresence MCU MSE 8510 devices before 4.3(2.30), and TelePresence Server before 2.3(1.55) does not properly validate H.264 data, which allows remote attackers to cause a denial of service (device reload) via crafted RTP packets in a (1) SIP session or (2) H.323 session, aka Bug IDs CSCuc11328 and CSCub05448.

Affected products

• Cisco Telepresence Mcu 4500 Series Software: up to and including 4.3\(2.18\); version 4.1(1.51) only; version 4.1(1.59) only; version 4.2(1.43) only; version 4.2(1.46) only; version 4.2(1.50) only; …
• Cisco Telepresence Mcu 4501
• Cisco Telepresence Mcu 4501 Series Software: up to and including 4.3\(2.18\); version 4.1(1.51) only; version 4.1(1.59) only; version 4.2(1.43) only; version 4.2(1.46) only; version 4.2(1.50) only; …
• Cisco Telepresence Mcu 4505
• Cisco Telepresence Mcu 4510
• Cisco Telepresence Mcu 4515
• Cisco Telepresence Mcu 4520
• Cisco Telepresence Mcu Mse 8510
• Cisco Telepresence Mcu Mse Series Software: up to and including 4.3\(2.18\); version 4.1(1.51) only; version 4.1(1.59) only; version 4.2(1.43) only; version 4.2(1.46) only; version 4.2(1.50) only; …
• Cisco Telepresence Server 7010
• Cisco Telepresence Server Mse 8710
• Cisco Telepresence Server Software: up to and including 2.2\(1.54\); version 2.1(1.33) only; version 2.1(1.37) only; version 2.2(1.43) only

Published 2013-04-18. Last modified 2026-06-16.