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TI-2019-12040 Aliases CVE-2019-16001GHSA-fvwq-fqr3-fwqf

Cisco Webex Teams for Windows DLL Hijacking Vulnerability

Priority LOW 24CWE-427Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-427.

Summary

A vulnerability in the loading mechanism of specific dynamic link libraries in Cisco Webex Teams for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of the resources loaded by the application at run time. An attacker could exploit this vulnerability by crafting a malicious DLL file and placing it in a specific location on the targeted system. The malicious DLL file would execute when the vulnerable application is launched. A successful exploit could allow the attacker to execute arbitrary code on the target machine with the privileges of another user account.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00377 31st 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 Teamsall versions—No fix listedCNA
  • Cisco Webex Teams VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*all versionsVulnerableCisco
cpe:2.3:a:cisco:webex_teams:*:*:*:*:*:*:*:*all versionsVulnerableCisco
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_teams:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-16001
  2. 2026-10-03 Alias added: GHSA-fvwq-fqr3-fwqf

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-2018-00079 Improper input validation in Cisco WebEx Advanced Recording Format Player CVSS 3.0CRITICAL 9.6
  • TI-2018-00224 Improper input validation in Cisco WebEx Advanced Recording Format file players CVSS 3.0CRITICAL 9.6
  • TI-2020-02913 Cisco Webex Meetings and Cisco Webex Meetings Server Token Handling Unauthorized Access Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2020-02894 Cisco Webex Meetings Desktop App for Mac Update Feature Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2017-09144 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players CVSS 3.0CRITICAL 9.6
See all 68 →

Sources

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