A vulnerability in the Session Initiation Protocol (SIP) on the Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the targeted appliance. The vulnerability is due to excessive SIP traffic sent to the device. An attacker could exploit this vulnerability by transmitting large volumes of SIP traffic to the VCS. An exploit could allow the attacker to cause a complete DoS condition on the targeted system. Cisco Bug IDs: CSCve32897.
CVE-2017-6790
MEDIUMNVD 6.86.8—
EchelonGraph scoreMEDIUM confidence
Score 6.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 6.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.8
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 2%CVSS: 6.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.8
- EG Score
- 6.8(medium)
- EPSS
- 78.7%
- KEV
- Not listed
Published
August 17, 2017
Last Modified
May 13, 2026
References (6)
- psirt@ciscohttp://www.securityfocus.com/bid/100369
- psirt@ciscohttp://www.securitytracker.com/id/1039185
- psirt@ciscohttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-vcs
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/100369
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039185
- af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-vcs
Data Freshness Timeline
(refreshed 12× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(5)
What is CVE-2017-6790?
CVE-2017-6790 is a medium vulnerability published on August 17, 2017. A vulnerability in the Session Initiation Protocol (SIP) on the Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the targeted appliance. The vulnerability is due to excessive SIP traffic sent to the…
When was CVE-2017-6790 disclosed?
CVE-2017-6790 was first published in the National Vulnerability Database on August 17, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-6790 actively exploited?
CVE-2017-6790 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-6790?
CVE-2017-6790 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2017-6790?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6790, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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