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CVE-2025-20156

32
FAUCET Score

CVE-2025-20156 is a critical privilege escalation vulnerability in the REST API of Cisco Meeting Management, allowing low-privileged authenticated attackers to gain administrator access. This flaw, rated 9.9 CRITICAL on CVSS, stems from improper authorization enforcement, enabling attackers to send specific API requests and achieve full control over managed edge nodes. While not currently listed in KEV, the vulnerability has garnered significant community discussion and media coverage, indicating high awareness, though no public exploit code (Metasploit, Nuclei, ExploitDB) is yet available.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.9.1CPE matchmatch criteria
cpe:2.3:a:cisco:meeting_management:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.9CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.18%
Probability of exploitation in next 30 days
EPSS Percentile
64.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 71st percentile among its peer group of 1,124 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

blog.clamav.net / 2025/01/clamav-142-and-108-security-patch.html
Not Applicable
sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-ole2-H549rphA
Not Applicable
sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-cmm-privesc-uy2Vf8pc
Vendor Advisory