Vulnerability Database

328,409

Total vulnerabilities in the database

CVE-2017-6753

A vulnerability in Cisco WebEx browser extensions for Google Chrome and Mozilla Firefox could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server, Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center), and Cisco WebEx Meetings when they are running on Microsoft Windows. The vulnerability is due to a design defect in the extension. An attacker who can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser. The following versions of the Cisco WebEx browser extensions are affected: Versions prior to 1.0.12 of the Cisco WebEx extension on Google Chrome, Versions prior to 1.0.12 of the Cisco WebEx extension on Mozilla Firefox. Cisco Bug IDs: CSCvf15012 CSCvf15020 CSCvf15030 CSCvf15033 CSCvf15036 CSCvf15037.

  • Published: Jul 25, 2017
  • Updated: Nov 9, 2025
  • CVE: CVE-2017-6753
  • Severity: High
  • Exploit:

CVSS v2:

  • Severity: High
  • Score: 9.3
  • AV:N/AC:M/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
cisco / webex_meetings_server 1.1_base 1.1_base.x
cisco / webex_meetings_server_2.7_mr2_patch 1 1.x
cisco / webex_event_center t32_base t32_base.x
cisco / webex_training_center t30_base t30_base.x
cisco / webex_meetings_server_2.5 mr2 mr2.x
cisco / webex_meetings_server_2.7 mr2 mr2.x
cisco / webex_meeting_center t32_base t32_base.x
cisco / webex_meetings_server_2.0 mr8 mr8.x
cisco / webex_meetings_server 2.5.1.29 2.5.1.29.x
cisco / webex_meetings_server 2.5_base 2.5_base.x
cisco / webex_meetings_server 2.5.1.5 2.5.1.5.x
cisco / webex_training_center t32_base t32_base.x
cisco / webex_meetings_server_2.0_mr9_patch 3 3.x
cisco / webex_meetings_server 2.5.99.2 2.5.99.2.x
cisco / webex_meetings_server_2.5_mr6_patch 4 4.x
cisco / webex_meetings_server_2.5 mr4 mr4.x
cisco / webex_event_center t30_base t30_base.x
cisco / webex_meetings_server_2.0 mr5 mr5.x
cisco / webex_meetings_server_2.7_mr1_patch 1 1.x
cisco / webex_meeting_center t30_base t30_base.x
cisco / webex_meetings_server_2.6_mr3_patch 1 1.x
cisco / webex_meetings_server 1.5.1.6 1.5.1.6.x
cisco / webex_meetings_server_2.5_mr6_patch 2 2.x
cisco / webex_meetings_server_2.5 mr5 mr5.x
cisco / webex_meetings_server_2.0 mr2 mr2.x
cisco / webex_meetings_server_2.5_mr2_patch 1 1.x
cisco / webex_training_center t31_base t31_base.x
cisco / webex_meetings_server_2.6_mr2_patch 1 1.x
cisco / webex_meetings_server 2.8_base 2.8_base.x
cisco / webex_support_center t30_base t30_base.x
cisco / webex_meetings_server 2.6.0 2.6.0.x
cisco / webex_meetings_server_2.0 mr3 mr3.x
cisco / webex_meetings_server_2.0_mr8_patch 1 1.x
cisco / webex_meeting_center t31_base t31_base.x
cisco / webex_meetings_server_2.5 mr1 mr1.x
cisco / webex_meetings_server_2.5_mr6_patch 3 3.x
cisco / webex_meetings_server_2.0 mr4 mr4.x
cisco / webex_meetings_server_2.0_mr9_patch 1 1.x
cisco / webex_meetings_server_2.6_mr3_patch 2 2.x
cisco / webex_meetings_server_2.5 mr6 mr6.x
cisco / webex_meetings_server_2.0 mr9 mr9.x
cisco / webex_support_center t32_base t32_base.x
cisco / webex_meetings_server_2.6 mr1 mr1.x
cisco / webex_meetings_server 2.7.1 2.7.1.x
cisco / webex_meetings_server 1.5.1.131 1.5.1.131.x
cisco / webex_event_center t31_base t31_base.x
cisco / webex_meetings_server_2.0 mr6 mr6.x
cisco / webex_meetings_server_2.0_mr9_patch 2 2.x
cisco / webex_meetings_server 2.7_base 2.7_base.x
cisco / webex_meetings_server_2.0 mr7 mr7.x
cisco / webex_meetings_server_2.5 mr3 mr3.x
cisco / webex_meetings_server 2.6.1.39 2.6.1.39.x
cisco / webex_meetings t30_base t30_base.x
cisco / webex_meetings_server_2.6 mr3 mr3.x
cisco / webex_meetings_server 2.0_base 2.0_base.x
cisco / webex_meetings_server_2.6 mr2 mr2.x
cisco / webex_support_center t31_base t31_base.x
cisco / webex_meetings_server_2.5_mr5_patch 1 1.x
cisco / webex_meetings_server_2.5_mr6_patch 1 1.x
cisco / webex_meetings_server_2.7 mr1 mr1.x
cisco / webex_meetings_server 2.0.1.107 2.0.1.107.x
cisco / webex_meetings_server_2.6_mr1_patch 1 1.x
cisco / webex_meetings_server 1.5_base 1.5_base.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.