Information disclosure in Cisco Webex Meetings
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
A vulnerability in the media engine component of Cisco Webex Meetings Client for Windows, Cisco Webex Meetings Desktop App for Windows, and Cisco Webex Teams for Windows could allow an authenticated, local attacker to gain access to sensitive information. The vulnerability is due to unsafe logging of authentication requests by the affected software. An attacker could exploit this vulnerability by reading log files that are stored in the application directory. A successful exploit could allow the attacker to gain access to sensitive information, which could be used in further attacks.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Webex Meetings | all versions | — | No fix listed | CNA |
- Cisco Webex Meetings VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:windows:*:* | before 39.5.25 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings:*:*:*:*:desktop:windows:*:* | before 39.5.25 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:windows:*:* | 40.6.0 to before 40.6.6 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings:*:*:*:*:desktop:windows:*:* | 40.6.0 to before 40.6.6 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_teams:*:*:*:*:*:windows:*:* | before 3.0.15711.0 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:windows:*:* Versions before 39.5.25 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings:*:*:*:*:desktop:windows:*:* Versions before 39.5.25 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:windows:*:* Versions 40.6.0 to before 40.6.6 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings:*:*:*:*:desktop:windows:*:* Versions 40.6.0 to before 40.6.6 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_teams:*:*:*:*:*:windows:*:* Versions before 3.0.15711.0 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3541
- 2026-10-03 Alias added: GHSA-5rmf-gfqh-5993
References
More Cisco Webex Meetings vulnerabilities
- 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
Sources
- CVE-2020-3541 · CVE Program
- CVE-2020-3541 · NVD
- FIRST EPSS
- GHSA-5rmf-gfqh-5993 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences