← Vulnerability feed

Vulnerability record · CVE-2017-12371 · published 30 November 2017

CVE-2017-12371: Cisco webex meetings memory buffer overflow vulnerability

Cisco · Webex Meetings

A "Cisco WebEx Network Recording Player Remote Code Execution Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) and WebEx Recording Format (WRF) files. A remote attacker could exploit this by providing a user with a malicious ARF or WRF file via email or URL and convincing the user to launch the file. Exploitation of this could cause an affected player to crash and, in some cases, could allow arbitrary code execution on the system of a targeted user. Cisco Bug IDs: CSCvf49650, CSCvg54853, CSCvg54856, CSCvf49697, CSCvg54861, CSCvf49707, CSCvg54867.

9.6 CVSS 3.0 Critical EPSS 3.0% · top 13.2% CWE-119 · Memory buffer overflow
9.6CVSS 3.0 base score, v2 6.8
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A "Cisco WebEx Network Recording Player Remote Code Execution Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) and WebEx Recording Format (WRF) files. A remote attacker could exploit this by providing a user with a malicious ARF or WRF file via email or URL and convincing the user to launch the file. Exploitation of this could cause an affected player to crash and, in some cases, could allow arbitrary code execution on the system of a targeted user. Cisco Bug IDs: CSCvf49650, CSCvg54853, CSCvg54856, CSCvf49697, CSCvg54861, CSCvf49707, CSCvg54867.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/102017 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039895 Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-webex-players Vendor Advisory
http://www.securityfocus.com/bid/102017 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039895 Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-webex-players Vendor Advisory

Track CVE-2017-12371 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-3361Cisco webex meetings improper authentication vulnerabilityA vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to gain unauthorized access t…EPSS 2.4%9.6CVE-2018-0264Cisco webex business suite 31 improper input validation vulnerabilityA vulnerability in the Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) files could allow an unauthenticated, remote attacker…EPSS 3.1%9.6CVE-2018-0104Cisco webex business suite improper input validation vulnerabilityA vulnerability in Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) files could allow a remote attacker to execute arbitrary …EPSS 3.8%9.6CVE-2017-12368Cisco webex meetings memory buffer overflow vulnerabilityA "Cisco WebEx Network Recording Player Remote Code Execution Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced Recording Fo…EPSS 3.0%9.6CVE-2017-12369Cisco webex meetings memory buffer overflow vulnerabilityA "Cisco WebEx Network Recording Player Out-of-Bounds Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced Recording Format (AR…EPSS 3.0%9.6CVE-2017-12370Cisco webex meetings memory buffer overflow vulnerabilityA "Cisco WebEx Network Recording Player Remote Code Execution Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced Recording Fo…EPSS 3.0%9.6CVE-2017-12372Cisco webex meetings server memory buffer overflow vulnerabilityA "Cisco WebEx Network Recording Player Remote Code Execution Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced Recording Fo…EPSS 3.0%9.0CVE-2018-0112Cisco webex meetings server improper input validation vulnerabilityA vulnerability in Cisco WebEx Business Suite clients, Cisco WebEx Meetings, and Cisco WebEx Meetings Server could allow an authenticated, remote att…EPSS 2.6%

Source: NIST National Vulnerability Database (record CVE-2017-12371), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.