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CVE-2017-12249

29
FAUCET Score

CVE-2017-12249 is a critical vulnerability in the Traversal Using Relay NAT (TURN) server within Cisco Meeting Server (CMS) releases prior to 2.0.16, 2.1.11, or 2.2.6. Due to an incorrect default configuration, an authenticated, remote attacker can gain unauthorized access to internal CMS components or sensitive meeting information. With a CVSS score of 9.1 (CRITICAL), a successful exploit could lead to unauthenticated access to Call Bridges or database clusters, or unauthorized access to sensitive data. While there is no known active exploitation or public exploit code, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.15CPE matchmatch criteria
cpe:2.3:a:cisco:meeting_server:*:*:*:*:*:*:*:*
2.1.0CPE matchmatch criteria
cpe:2.3:a:cisco:meeting_server:2.1.0:*:*:*:*:*:*:*
2.1.1CPE matchmatch criteria
cpe:2.3:a:cisco:meeting_server:2.1.1:*:*:*:*:*:*:*
2.1.2CPE matchmatch criteria
cpe:2.3:a:cisco:meeting_server:2.1.2:*:*:*:*:*:*:*
2.1.3CPE matchmatch criteria
cpe:2.3:a:cisco:meeting_server:2.1.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.1CRITICAL

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.13%
Probability of exploitation in next 30 days
EPSS Percentile
86.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0313 is in the 87th percentile among its peer group of 462 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.7 Bluesky, 0.4 Mastodon, and 1.7 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20170913-cmsturn
Vendor Advisory
securityfocus.com / bid/100821
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039357
Third Party AdvisoryVDB Entry