What is CVE-2017-12287?

CVE-2017-12287 is a medium-severity vulnerability in Cisco Expressway, classified under CWE-399. CVSS score: 4.3/10. Published 2017-10-19.

How severe is CVE-2017-12287?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Cisco Expressway

CVE-2017-12287

A vulnerability in the cluster database (CDB) management component of Cisco Expressway Series Software and Cisco TelePresence Video Communication Server (VCS) Software could allow an authenticated, remote attacker to cause the CDB process on an affected system to restart unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to incomplete input validation of URL requests by the REST API of the affected software. An attacker could exploit this vulnerability by sending a crafted URL to the REST API of the affected software on an affected system. A successful exploit could allow the attacker to cause the CDB process on the affected system to restart unexpectedly, resulting in a temporary DoS condition. Cisco Bug IDs: CSCve77571.

Published 2017-10-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.016 (76.1th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Cisco Expressway
Cisco Telepresence Conductor
Cisco Telepresence Video Communication Server
Cisco Expressway Series And Telepresence Video Communication Server — versions Cisco Expressway Series and Cisco TelePresence Video Communication Server

Weakness classification (CWE)

References

www.securityfocus.com/bid/101525 (VDB Entry, Third Party Advisory, vdb-entry)
www.securitytracker.com/id/1039626 (VDB Entry, Third Party Advisory, vdb-entry)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018… (Vendor Advisory)

Frequently asked questions

What is CVE-2017-12287?: CVE-2017-12287 is a medium-severity vulnerability in Cisco Expressway, classified under CWE-399. CVSS score: 4.3/10. Published 2017-10-19.
How severe is CVE-2017-12287?: Medium severity. CVSS v3 base score is 4.3 out of 10.