Improper input validation in Cisco Meeting Server before 2.0.6 and Acano Server before…
Priority MEDIUM 44CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A vulnerability in the Extensible Messaging and Presence Protocol (XMPP) service of the Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 could allow an unauthenticated, remote attacker to masquerade as a legitimate user. This vulnerability is due to the XMPP service incorrectly processing a deprecated authentication scheme. A successful exploit could allow an attacker to access the system as another user.
Why it matters now
EPSS 0.02514 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 | Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 | — | No fix listed | CNA |
- Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 Vendor— Affected Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:meeting_server:1.8.15:*:*:*:*:*:*:* | 1.8.15 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:meeting_server:1.8_base:*:*:*:*:*:*:* | 1.8_base | Vulnerable | Cisco |
| cpe:2.3:a:cisco:meeting_server:1.9.0:*:*:*:*:*:*:* | 1.9.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:meeting_server:1.9.2:*:*:*:*:*:*:* | 1.9.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:meeting_server:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:meeting_server:2.0.1:*:*:*:*:*:*:* | 2.0.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:meeting_server:2.0.3:*:*:*:*:*:*:* | 2.0.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:meeting_server:2.0.4:*:*:*:*:*:*:* | 2.0.4 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:meeting_server:2.0.5:*:*:*:*:*:*:* | 2.0.5 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:meeting_server:1.8.15:*:*:*:*:*:*:* Versions 1.8.15 Vulnerable ·Cisco
- cpe:2.3:a:cisco:meeting_server:1.8_base:*:*:*:*:*:*:* Versions 1.8_base Vulnerable ·Cisco
- cpe:2.3:a:cisco:meeting_server:1.9.0:*:*:*:*:*:*:* Versions 1.9.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:meeting_server:1.9.2:*:*:*:*:*:*:* Versions 1.9.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:meeting_server:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:meeting_server:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:meeting_server:2.0.3:*:*:*:*:*:*:* Versions 2.0.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:meeting_server:2.0.4:*:*:*:*:*:*:* Versions 2.0.4 Vulnerable ·Cisco
- cpe:2.3:a:cisco:meeting_server:2.0.5:*:*:*:*:*:*:* Versions 2.0.5 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6445
- 2026-10-03 Alias added: GHSA-gcmr-695p-fx75
References
More Cisco Meeting Server vulnerabilities
- TI-2016-05530 Memory corruption in Cisco Meeting Server before 2.0.3 and Acano Server before 1.9.5 CVSS 3.0CRITICAL 9.8
- TI-2016-05529 Memory corruption in Cisco Meeting Server before 2.0.1, Acano Server before 1.9.3, Cisco… CVSS 3.0CRITICAL 9.8
- TI-2018-00239 Improper input validation in Cisco Meeting Server Media Services CVSS 3.0HIGH 7.5
- TI-2017-09025 Exposure of resource to wrong sphere in Cisco Meeting Server CVSS 3.0CRITICAL 9.1
- TI-2018-00222 A vulnerability in Cisco Meeting Server could allow an unauthenticated, remote attacker… CVSS 3.0HIGH 8.1
- TI-2018-11006 Cisco Meeting Server Information Disclosure Vulnerability CVSS 3.0HIGH 7.5
Sources
- CVE-2016-6445 · CVE Program
- CVE-2016-6445 · NVD
- FIRST EPSS
- GHSA-gcmr-695p-fx75 · 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