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01 Record

CVE-2025-20156

Cisco Meeting Management Client-Server Privilege Escalation Vulnerability

CriticalPUBLISHEDCNA: cisco
CNA base score9.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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02 Description

Cisco Meeting Management Client-Server Privilege Escalation Vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.19% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 67.4% of scored records. A rank, not a probability.
NVD base score
9.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-01-22 16:21Z1 YR AGO
Last updated
2026-02-26 19:08Z8 MO AGO
Reserved
2024-10-10
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Critical (CVSS 9.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-274Improper Handling of Insufficient PrivilegesBase
Data version
5.2
Document digest
afa025c1827ae0a5b210c401c48baec2ab69a35c01deb1d2fbb374a076edb1ca

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Meeting ManagementCMM3.4.0, 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—

06 References