CVE-2017-6651

What it is

A vulnerability in Cisco WebEx Meetings Server could allow unauthenticated, remote attackers to gain information that could allow them to access scheduled customer meetings. The vulnerability is due to an incomplete configuration of the robots.txt file on customer-hosted WebEx solutions and occurs when the Short URL functionality is not activated. All releases of Cisco WebEx Meetings Server later than release 2.5MR4 provide this functionality. An attacker could exploit this vulnerability via an exposed parameter to search for indexed meeting information. A successful exploit could allow the attacker to obtain scheduled meeting information and potentially allow the attacker to attend scheduled, customer meetings. This vulnerability affects the following releases of Cisco WebEx Meetings Server: 2.5, 2.6, 2.7, 2.8. Cisco Bug IDs: CSCve25950.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure.

Exploit odds

2.0% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2017-05-16 17:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:22 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.0% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2017-05-16 17:29 UTC

Last modified

2026-06-17 01:22 UTC

Exploit probability

2.0% · EPSS, next 30 days

Weakness

CWE-200 · Information exposure

Record status

Modified

Affected

• Cisco Webex Meetings Server 2.5.1.5
• Cisco Webex Meetings Server 2.5.1.29
• Cisco Webex Meetings Server 2.5.99.2
• Cisco Webex Meetings Server 2.5_base
• Cisco Webex Meetings Server 2.5_mr1
• Cisco Webex Meetings Server 2.5_mr2
• Cisco Webex Meetings Server 2.5_mr3
• Cisco Webex Meetings Server 2.5_mr4

Attack profile CVSS 3.0 · 7.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Is it in your code?

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