CVE-2017-12311

medium Cisco
CVSS v3 Base Score
5.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
EPSS Score
0.8%
Exploitation probability in 30 days
Top 25% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Published: November 16, 2017 (3101 days ago)
Last Modified: May 13, 2026
Vendor: Cisco
Source: NVD

Description

A vulnerability in the H.264 decoder function of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a Cisco Meeting Server media process to restart unexpectedly when it receives an illegal H.264 frame. The vulnerability is triggered by an H.264 frame that has an invalid picture parameter set (PPS) value. An attacker could exploit this vulnerability by sending a malformed H.264 frame to the targeted device. An exploit could allow the attacker to cause a denial of service (DoS) condition because the media process could restart. The media session should be re-established within a few seconds, during which there could be a brief interruption in service. Cisco Bug IDs: CSCvg12559.

CWE

CWE-399

Affected Products

cisco meeting server

References

🔗 www.securityfocus.com 🔗 www.securitytracker.com 🔗 tools.cisco.com 🔗 www.securityfocus.com 🔗 www.securitytracker.com