CVE-2018-0436

Name: CVE-2018-0436
Creator: NVD / NIST
Published: 2018-10-05T14:29:01.933+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 1.28%

Last modified Jun 17, 2026

CVE-2018-0436 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. A vulnerability in Cisco Webex Teams, formerly Cisco Spark, could allow an authenticated, remote attacker to view and modify data for an organization other than their own organization. The vulnerability exists because the affected software performs insufficient checks for associations between user accounts and organization accounts. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

Description

A vulnerability in Cisco Webex Teams, formerly Cisco Spark, could allow an authenticated, remote attacker to view and modify data for an organization other than their own organization. The vulnerability exists because the affected software performs insufficient checks for associations between user accounts and organization accounts. An attacker who has administrator or compliance officer privileges for one organization account could exploit this vulnerability by using those privileges to view and modify data for another organization account. No customer data was impacted by this vulnerability.

Metrics

CVSS 3.1

8.7/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

EPSS Probability

1.28%

66.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Webex Teams	< 10.6.0

References

http://www.securityfocus.com/bid/105301Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-webex-id-modVendor Advisory
http://www.securityfocus.com/bid/105301Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-webex-id-modVendor Advisory

Timeline

Published: Oct 5, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0436?

How severe is CVE-2018-0436?

CVE-2018-0436 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0436?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0436?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST