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TI-2020-02678 Aliases CVE-2020-3116GHSA-86c7-v7v4-whcp

Cisco Webex Centers Denial of Service Vulnerability

Priority LOW 26CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A vulnerability in the way Cisco Webex applications process Universal Communications Format (UCF) files could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of UCF media files. An attacker could exploit this vulnerability by sending a user a malicious UCF file through a link or email attachment and persuading the user to open the file with the affected software on the local system. A successful exploit would cause the application to quit unexpectedly.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00664 52nd 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
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco WebEx Event Centerall versions—No fix listedCNA
  • Cisco WebEx Event Center VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:cisco:webex_meetings_online:1.3.43:*:*:*:*:*:*:*1.3.43VulnerableCisco
cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:*4.0VulnerableCisco
  • cpe:2.3:a:cisco:webex_meetings_online:1.3.43:*:*:*:*:*:*:* Versions 1.3.43 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:* Versions 4.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3116
  2. 2026-10-03 Alias added: GHSA-86c7-v7v4-whcp
  3. 2026-10-04 EPSS moved to the 50th–90th percentile

References

Advisory 1

  • TI-2019-01300 Cisco Webex Meetings Desktop App and Cisco Webex Productivity Tools Update Service Command Injection Vulnerability CVSS 3.0HIGH 8.8
  • TI-2018-00246 Improper input validation in Cisco WebEx Advanced Recording Format Player CVSS 3.0HIGH 8.8
  • TI-2020-02704 Cisco Webex Meetings Suite and Cisco Webex Meetings Online Unauthenticated Meeting Join Vulnerability CVSS 3.1HIGH 7.5
  • TI-2020-02689 Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulnerabilities CVSS 3.1HIGH 7.8
  • TI-2022-05322 Cisco Webex Meetings Java Deserialization Vulnerability CVSS 3.1HIGH 8.8
  • TI-2020-02755 Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulnerability CVSS 3.1HIGH 7.8
See all 58 →

Sources

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