TI-2025-14456 Aliases CVE-2025-20156 GHSA-8m34-ghfg-xxc2

Cisco Meeting Management Client-Server Privilege Escalation Vulnerability

MEDIUM 51CWE-274Published 2025-01-22 · Updated 2026-02-26

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated attacker with low privileges to elevate privileges to administrator on an affected device. This vulnerability exists because proper authorization is not enforced upon REST API users. An attacker could exploit this vulnerability by sending API requests to a specific endpoint. A successful exploit could allow the attacker to gain administrator-level control over edge nodes that are managed by Cisco Meeting Management.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01185 68th 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: 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	—	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 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:meeting_management::::::::	before 3.9.1	Vulnerable	Cisco

cpe:2.3:a:cisco:meeting_management:*:*:*:*:*:*:*:* Versions before 3.9.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-20156
2026-10-03 Alias added: GHSA-8m34-ghfg-xxc2

References

Advisory 1

cisco-sa-cmm-privesc-uy2Vf8pc

Other 2

TI-2018-03923 Uncontrolled resource consumption in Linux Kernel CVSS 3.1HIGH 7.5
TI-2026-16311 Cisco Meeting Management Arbitrary File Upload Vulnerability CVSS 3.1HIGH 8.8
TI-2024-13431 Cisco Meeting Management Information Disclosure Vulnerability CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences