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CVE-2020-3482

21
FAUCET Score

CVE-2020-3482 describes a medium-severity vulnerability in the Traversal Using Relays around NAT (TURN) server component of Cisco Expressway and TelePresence Video Communication Server software. This flaw, caused by improper validation of connection information, allows an unauthenticated, remote attacker to bypass security controls and send network traffic to restricted destinations. A successful exploit could grant unauthorized network access by routing traffic through the affected software. While the CVSS score is 6.5, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< x12.6.3CPE matchmatch criteria
cpe:2.3:a:cisco:expressway:*:*:*:*:*:*:*:*
< x12.6.3CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.36%
Probability of exploitation in next 30 days
EPSS Percentile
68.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0136 is in the 50th percentile among its peer group of 23,725 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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-Expressway-8J3yZ7hV
Vendor Advisory