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TI-2018-11006 Aliases CVE-2018-15446GHSA-42c2-rg6h-pxvc

Cisco Meeting Server Information Disclosure Vulnerability

Priority MEDIUM 43CWE-200Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

A vulnerability in Cisco Meeting Server could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability is due to improper protections on data that is returned from user meeting requests when the Guest access via ID and passcode option is set to Legacy mode. An attacker could exploit this vulnerability by sending meeting requests to an affected system. A successful exploit could allow the attacker to determine the values of meeting room unique identifiers, possibly allowing the attacker to conduct further exploits.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02184 82nd 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
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Meeting Serverall versions—No fix listedCNA
  • Cisco Meeting Server VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:meeting_server:-:*:*:*:*:*:*:*not specified by NVDVulnerableCisco
  • cpe:2.3:a:cisco:meeting_server:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-15446
  2. 2026-10-03 Alias added: GHSA-42c2-rg6h-pxvc

References

Advisory 1

  • 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-2016-05527 Improper input validation in Cisco Meeting Server before 2.0.6 and Acano Server before… CVSS 3.0CRITICAL 9.1
See all 30 →

Sources

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