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PatchSiren cyber security CVE debrief

CVE-2017-3794 Cisco CVE debrief

CVE-2017-3794 is a cross-site request forgery (CSRF) issue in Cisco WebEx Meetings Server. A remote attacker can try to induce an administrative user’s browser to send unintended requests, which can affect server state through the admin session. Cisco lists WebEx Meetings Server 2.6 as affected and 2.7.1.12 as the fixed release; NVD maps the weakness to CWE-352.

Vendor
Cisco
Product
Webex Meetings Server
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2017-01-26
Original CVE updated
2026-05-13
Advisory published
2017-01-26
Advisory updated
2026-05-13

Who should care

Organizations running Cisco WebEx Meetings Server 2.6, especially teams that manage the administrative web interface, should prioritize this issue. It is most relevant where administrators access the product through a browser and where administrative actions can be triggered by session-authenticated requests.

Technical summary

NVD describes CVE-2017-3794 with CVSS 3.0 vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating a network-reachable issue that requires user interaction but no prior privileges. The vulnerability is classified as CWE-352 (CSRF). In practical terms, the attack depends on an administrative user being persuaded to load or submit a crafted request while authenticated to Cisco WebEx Meetings Server.

Defensive priority

High for environments that still run Cisco WebEx Meetings Server 2.6 or have not confirmed the fixed release. Because the issue can be triggered remotely through an admin’s browser session, exposed administrative interfaces and active admin accounts increase urgency.

Recommended defensive actions

  • Upgrade Cisco WebEx Meetings Server from 2.6 to the fixed release 2.7.1.12 or later.
  • Review the Cisco security advisory for the product and confirm the deployment is not on an affected build.
  • Restrict access to administrative interfaces to trusted networks and users only.
  • Verify that browser-based administrative actions are protected against CSRF where possible.
  • Monitor administrative activity for unexpected or unusual configuration changes.

Evidence notes

Source metadata identifies the issue as a Cisco WebEx Meetings Server CSRF vulnerability. NVD assigns CWE-352 and the CVSS 3.0 vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The supplied record states affected release 2.6 and fixed release 2.7.1.12. The CVE was published on 2017-01-26 and the NVD record was last modified on 2026-05-13.

Sources and references

Verified primary and authoritative sources

  • CVE-2017-3794 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2017-3794

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2017-3794 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2017-3794

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.