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CVE-2017-6790

22
FAUCET Score

CVE-2017-6790 describes a denial-of-service vulnerability in the Session Initiation Protocol (SIP) of Cisco TelePresence Video Communication Server (VCS) products. An unauthenticated, remote attacker can exploit this by sending excessive SIP traffic, leading to a complete DoS condition. Rated 6.8 MEDIUM, the attack requires high complexity but has a high impact on availability, with no confidentiality or integrity impact. There is no known public exploit code, active exploitation, or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
x8.7CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7:*:*:*:*:*:*:*
x8.7.1CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7.1:*:*:*:*:*:*:*
x8.7.2CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7.2:*:*:*:*:*:*:*
x8.7.3CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7.3:*:*:*:*:*:*:*
x8.8CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.03%
Probability of exploitation in next 30 days
EPSS Percentile
79.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0203 is in the 64th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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-20170816-vcs
Vendor Advisory
securityfocus.com / bid/100369
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039185
Third Party AdvisoryVDB Entry