Cisco Webex Meetings and Cisco Webex Meetings Server Information Disclosure Vulnerability
Priority LOW 33CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to view sensitive information from the meeting room lobby. This vulnerability is due to insufficient protection of sensitive participant information. An attacker could exploit this vulnerability by browsing the Webex roster. A successful exploit could allow the attacker to gather information about other Webex participants, such as email address and IP address, while waiting in the lobby.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01565 75th 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
- Yes
- 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 Server | all versions | — | No fix listed | CNA |
- Cisco WebEx Meetings Server VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:webex_meetings:*:*:*:*:slow_channel:*:*:* | up to 40.6.11 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:* | up to 40.11.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:* | before 3.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:* | 3.0 maintenance_release2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release3:*:*:*:*:*:* | 3.0 maintenance_release3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:* | 4.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release1:*:*:*:*:*:* | 4.0 maintenance_release1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release2:*:*:*:*:*:* | 4.0 maintenance_release2 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:webex_meetings:*:*:*:*:slow_channel:*:*:* Versions up to 40.6.11 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:* Versions up to 40.11.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:* Versions before 3.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:* Versions 3.0 maintenance_release2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release3:*:*:*:*:*:* Versions 3.0 maintenance_release3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:* Versions 4.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release1:*:*:*:*:*:* Versions 4.0 maintenance_release1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release2:*:*:*:*:*:* Versions 4.0 maintenance_release2 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3441
- 2026-10-03 Alias added: GHSA-3j43-3g85-j77v
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-2020-3441 · CVE Program
- CVE-2020-3441 · NVD
- FIRST EPSS
- GHSA-3j43-3g85-j77v · 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