Cisco Meeting Management Arbitrary File Upload Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- 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-434.
Summary
A vulnerability in the Certificate Management feature of Cisco Meeting Management could allow an authenticated, remote attacker to upload arbitrary files, execute arbitrary commands, and elevate privileges to root on an affected system. This vulnerability is due to improper input validation in certain sections of the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to upload arbitrary files to the affected system. The malicious files could overwrite system files that are processed by the root system account and allow arbitrary command execution with root privileges. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of video operator.
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 Meeting Management | CMM3.4.0; CMM3.2.0; CMM2.9.1; CMM2.9.0; CMM3.1.0; CMM3.5.0; CMM3.6.0; CMM3.6.1; CMM3.7.0; CMM3.8.0; CMM3.9.0; CMM3.10.0; CMM3.9.1; CMM3.11.0; CMM3.12.0 | — | No fix listed | CNA |
- Cisco Meeting Management VendorCisco Affected CMM3.4.0; CMM3.2.0; CMM2.9.1; CMM2.9.0; CMM3.1.0; CMM3.5.0; CMM3.6.0; CMM3.6.1; CMM3.7.0; CMM3.8.0; CMM3.9.0; CMM3.10.0; CMM3.9.1; CMM3.11.0; CMM3.12.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-20098
- 2026-10-03 Alias added: GHSA-jxvq-5vh3-x329
References
Advisory 1
More Cisco Meeting Management vulnerabilities
- TI-2018-03923 Uncontrolled resource consumption in Linux Kernel CVSS 3.1HIGH 7.5
- TI-2025-14456 Cisco Meeting Management Client-Server Privilege Escalation Vulnerability CVSS 3.1CRITICAL 9.9
- TI-2024-13431 Cisco Meeting Management Information Disclosure Vulnerability CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-20098 · CVE Program
- CVE-2026-20098 · NVD
- FIRST EPSS
- GHSA-jxvq-5vh3-x329 · GitHub Advisory Database · CC BY 4.0
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