Improper input validation in Cisco Meeting Server
CVE-2017-6763
A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) 2.1.4 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected application does not properly validate Fragmentation Unit (FU-A) protocol packets. An attacker could exploit this vulnerability by sending a crafted H.264 FU-A packet through the affected application. A successful exploit could allow the attacker to cause a DoS condition on the affected system due to an unexpected restart of the CMS media process on the system. Although the CMS platform continues to operate and only the single, affected CMS media process is restarted, a brief interruption of media traffic for certain users could occur. Cisco Bug IDs: CSCve10131.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Cisco Meeting Server — versions 2.1.4
- Cisco Meeting Server — versions Cisco Meeting Server
Weakness classification (CWE)
References
- quickview.cloudapps.cisco.com/quickview/bug/CSCve10131 (Vendor Advisory)
- www.securityfocus.com/bid/100111 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1039058 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802… (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-6763?
- CVE-2017-6763 is a high-severity vulnerability in Cisco Meeting Server, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2017-08-07.
- How severe is CVE-2017-6763?
- High severity. CVSS v3 base score is 7.5 out of 10.