Cisco Webex Meetings and Cisco Webex Meetings Server Token Handling Unauthorized Access Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- 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-287.
Summary
A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to gain unauthorized access to a vulnerable Webex site. The vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. If successful, the attacker could gain the privileges of another user within the affected Webex site.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:* | up to 39.5.25; 40.1.0 – 40.4.10 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings:40.6.0:*:*:*:*:*:*:* | 40.6.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:* | before 4.0 | 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_server:4.0:maintenance_release3:*:*:*:*:*:* | 4.0 maintenance_release3 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:* Versions up to 39.5.25; 40.1.0 – 40.4.10 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings:40.6.0:*:*:*:*:*:*:* Versions 40.6.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:* Versions before 4.0 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
- cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release3:*:*:*:*:*:* Versions 4.0 maintenance_release3 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3361
- 2026-10-03 Alias added: GHSA-p2hx-2jxm-v7cv
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-2020-02894 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
- TI-2017-09143 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players CVSS 3.0CRITICAL 9.6
Sources
- CVE-2020-3361 · CVE Program
- CVE-2020-3361 · NVD
- FIRST EPSS
- GHSA-p2hx-2jxm-v7cv · 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