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TI-2021-01262 Aliases CVE-2021-1536GHSA-hwgc-9p3v-8ffx

Cisco Webex Meetings, Webex Network Recording Player, and Webex Teams DLL Injection Vulnerability

Priority LOW 34CWE-427Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
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 Cisco Webex Meetings Desktop App for Windows, Cisco Webex Meetings Server, Cisco Webex Network Recording Player for Windows, and Cisco Webex Teams for Windows could allow an authenticated, local attacker to perform a DLL injection attack on an affected device. To exploit this vulnerability, the attacker must have valid credentials on the Windows system. This vulnerability is due to incorrect handling of directory paths at run time. An attacker could exploit this vulnerability by inserting a configuration file in a specific path in the system, which can cause a malicious DLL file to be loaded when the application starts. A successful exploit could allow the attacker to execute arbitrary code on the affected system with the privileges of another user account.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00326 25th 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 · 5

CPEVersionsRoleVendor
cpe:2.3:a:cisco:webex_meetings_desktop:-:*:*:*:*:windows:*:*not specified by NVDVulnerableCisco
cpe:2.3:a:cisco:webex_meetings_online:-:*:*:*:*:*:*:*not specified by NVDVulnerableCisco
cpe:2.3:a:cisco:webex_meetings_server:4.0:*:*:*:*:*:*:*4.0VulnerableCisco
cpe:2.3:a:cisco:webex_network_recording_player:-:*:*:*:*:windows:*:*not specified by NVDVulnerableCisco
cpe:2.3:a:cisco:webex_teams:3.0.15485.0:*:*:*:*:windows:*:*3.0.15485.0VulnerableCisco
  • cpe:2.3:a:cisco:webex_meetings_desktop:-:*:*:*:*:windows:*:* Versions not specified by NVD Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_meetings_online:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_network_recording_player:-:*:*:*:*:windows:*:* Versions not specified by NVD Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_teams:3.0.15485.0:*:*:*:*:windows:*:* Versions 3.0.15485.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1536
  2. 2026-10-03 Alias added: GHSA-hwgc-9p3v-8ffx

References

  • TI-2018-11002 Cisco Webex Meetings Desktop App Update Service Command Injection Vulnerability CVSS 3.0HIGH 7.8
  • TI-2021-01229 Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability CVSS 3.1HIGH 7.8

Sources