Cisco Webex App Client-Side Remote Code Execution Vulnerability
Key facts
- Attack vector
- Network
- 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 · CNA. Fix status from CNA. Impact type from CWE-829.
Summary
A vulnerability in the custom URL parser of Cisco Webex App could allow an unauthenticated, remote attacker to persuade a user to download arbitrary files, which could allow the attacker to execute arbitrary commands on the host of the targeted user. This vulnerability is due to insufficient input validation when Cisco Webex App processes a meeting invite link. An attacker could exploit this vulnerability by persuading a user to click a crafted meeting invite link and download arbitrary files. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the targeted user.
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 Teams | 44.6; 44.6.0.29928; 44.6.0.30148; 44.7; 44.7.0.30141; 44.7.0.30285 | — | No fix listed | CNA |
- Cisco Webex Teams VendorCisco Affected 44.6; 44.6.0.29928; 44.6.0.30148; 44.7; 44.7.0.30141; 44.7.0.30285 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:webex_teams:44.6:*:*:*:*:*:*:* | 44.6 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_teams:44.6.0.29928:*:*:*:*:*:*:* | 44.6.0.29928 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_teams:44.6.0.30148:*:*:*:*:*:*:* | 44.6.0.30148 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_teams:44.7:*:*:*:*:*:*:* | 44.7 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_teams:44.7.0.30141:*:*:*:*:*:*:* | 44.7.0.30141 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:webex_teams:44.7.0.30285:*:*:*:*:*:*:* | 44.7.0.30285 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:webex_teams:44.6:*:*:*:*:*:*:* Versions 44.6 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_teams:44.6.0.29928:*:*:*:*:*:*:* Versions 44.6.0.29928 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_teams:44.6.0.30148:*:*:*:*:*:*:* Versions 44.6.0.30148 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_teams:44.7:*:*:*:*:*:*:* Versions 44.7 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_teams:44.7.0.30141:*:*:*:*:*:*:* Versions 44.7.0.30141 Vulnerable ·Cisco
- cpe:2.3:a:cisco:webex_teams:44.7.0.30285:*:*:*:*:*:*:* Versions 44.7.0.30285 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-20236
- 2026-10-03 Alias added: GHSA-rv87-h47c-m27v
References
Advisory 1
More Cisco Webex Teams vulnerabilities
- TI-2019-01262 Cisco Webex Teams URI Handler Insecure Library Loading Vulnerability CVSS 3.0HIGH 7.8
- TI-2019-01559 Cisco Webex Teams Logging Feature Command Execution Vulnerability CVSS 3.1HIGH 8.8
- TI-2018-00346 Improper input validation in Cisco Webex Teams unknown CVSS 3.1HIGH 8.8
- TI-2018-00395 Cisco Webex Teams Information Disclosure and Modification Vulnerability CVSS 3.1HIGH 8.7
- TI-2020-03080 Cisco Webex Teams Client for Windows DLL Hijacking Vulnerability CVSS 3.1HIGH 8.4
- TI-2021-01229 Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability CVSS 3.1HIGH 7.8
Sources
- CVE-2025-20236 · CVE Program
- CVE-2025-20236 · NVD
- FIRST EPSS
- GHSA-rv87-h47c-m27v · 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