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TI-2018-00087 Aliases CVE-2018-0112GHSA-rc89-r9w6-g3gv

Improper input validation in Cisco WebEx Clients

Priority MEDIUM 46CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

A vulnerability in Cisco WebEx Business Suite clients, Cisco WebEx Meetings, and Cisco WebEx Meetings Server could allow an authenticated, remote attacker to execute arbitrary code on a targeted system. The vulnerability is due to insufficient input validation by the Cisco WebEx clients. An attacker could exploit this vulnerability by providing meeting attendees with a malicious Flash (.swf) file via the file-sharing capabilities of the client. Exploitation of this vulnerability could allow arbitrary code execution on the system of a targeted user. This affects the clients installed by customers when accessing a WebEx meeting. The following client builds of Cisco WebEx Business Suite (WBS30, WBS31, and WBS32), Cisco WebEx Meetings, and Cisco WebEx Meetings Server are impacted: Cisco WebEx Business Suite (WBS31) client builds prior to T31.23.2, Cisco WebEx Business Suite (WBS32) client builds prior to T32.10, Cisco WebEx Meetings with client builds prior to T32.10, Cisco WebEx Meetings Server builds prior to 2.8 MR2. Cisco Bug IDs: CSCvg19384, CSCvi10746.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02596 85th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Cisco WebEx ClientsCisco WebEx Clients—No fix listedCNA
  • Cisco WebEx Clients Vendor— Affected Cisco WebEx Clients Fixed in — No fix listed CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:cisco:webex_meetings_server:2.7:*:*:*:*:*:*:*2.7VulnerableCisco
cpe:2.3:a:cisco:webex_meetings_server:2.8:*:*:*:*:*:*:*2.8VulnerableCisco
cpe:2.3:a:cisco:webex_meetings_server:3.0:*:*:*:*:*:*:*3.0VulnerableCisco
cpe:2.3:a:cisco:webex_meetings:t31:*:*:*:*:*:*:*t31VulnerableCisco
cpe:2.3:a:cisco:webex_meetings:t31:sp11:*:*:*:*:*:*t31 sp11VulnerableCisco
cpe:2.3:a:cisco:webex_business_suite_31:*:*:*:*:*:*:*:*before t31.23.2VulnerableCisco
cpe:2.3:a:cisco:webex_business_suite_32:*:*:*:*:*:*:*:*before t32.10VulnerableCisco
  • cpe:2.3:a:cisco:webex_meetings_server:2.7:*:*:*:*:*:*:* Versions 2.7 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_meetings_server:2.8:*:*:*:*:*:*:* Versions 2.8 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_meetings:t31:*:*:*:*:*:*:* Versions t31 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_meetings:t31:sp11:*:*:*:*:*:* Versions t31 sp11 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_business_suite_31:*:*:*:*:*:*:*:* Versions before t31.23.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_business_suite_32:*:*:*:*:*:*:*:* Versions before t32.10 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-0112
  2. 2026-10-03 Alias added: GHSA-rc89-r9w6-g3gv

References

Advisory 1

  • TI-2018-00224 Improper input validation in Cisco WebEx Advanced Recording Format file players CVSS 3.0CRITICAL 9.6
  • TI-2018-10978 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities CVSS 3.1HIGH 7.8
  • TI-2018-10970 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities CVSS 3.1HIGH 7.8
  • TI-2018-10969 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities CVSS 3.0HIGH 7.8
  • TI-2018-00381 A vulnerability in the folder permissions of Cisco Webex Meetings client for Windows… CVSS 3.0HIGH 7.3
  • TI-2018-10996 Cisco Webex Centers Cross-Site Scripting Vulnerability CVSS 3.0MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences