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CVE-2017-12337

CRITICAL

A vulnerability in the upgrade mechanism of Cisco collaboration products based on the Cisco Voice Operating System software platform could allow an unauthenticated, remote attacker to gain unauthorized, elevated access to an affected device. The vulnerability occurs when a refresh upgrade (RU) or Prime Collaboration Deployment (PCD) migration is performed on an affected device. When a refresh upgrade or PCD migration is completed successfully, an engineering flag remains enabled and could allow root access to the device with a known password. If the vulnerable device is subsequently upgraded using the standard upgrade method to an Engineering Special Release, service update, or a new major release of the affected product, this vulnerability is remediated by that action. Note: Engineering Special Releases that are installed as COP files, as opposed to the standard upgrade method, do not remediate this vulnerability. An attacker who can access an affected device over SFTP while it is in a vulnerable state could gain root access to the device. This access could allow the attacker to compromise the affected system completely. Cisco Bug IDs: CSCvg22923, CSCvg55112, CSCvg55128, CSCvg55145, CSCvg58619, CSCvg64453, CSCvg64456, CSCvg64464, CSCvg64475, CSCvg68797.

Published: Nov 16, 2017 Modified: Jun 17, 2026
CWE-287 CWE-287

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (12)

Vendor Product Version
cisco emergency_responder -
cisco finesse -
cisco hosted_collaboration_solution -
cisco mediasense -
cisco prime_license_manager -
cisco socialminer -
cisco unified_communications_manager -
cisco unified_communications_manager -
cisco unified_communications_manager_im_and_presence_service -
cisco unified_contact_center_express -
cisco unified_intelligence_center -
cisco unity_connection -

GitHub Security Advisory GHSA-rg7v-73fx-2hfh

A vulnerability in the upgrade mechanism of Cisco collaboration products based on the Cisco Voice...

References (20)

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 6.44%

Top 7% most likely to be exploited

Threat Score 41.1 / 100

Data Sources

NVD EPSS GitHub