Field Notice: FN - 70608 - Cisco Webex Meeting Server Users Will Not Be Able to Start or Join Meetings after 2021-02-28 - Software Upgrade Recommended

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Updated:February 4, 2021

Document ID:FN70608

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Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision	Publish Date	Comments
1.0	22-Sep-20	Initial Release
2.0	04-Feb-21	Updated the Defect Information, Background, Problem Symptom, and Workaround/Solution Sections

Products Affected

Affected OS Type	Affected Software Product	Affected Release	Affected Release Number	Comments
NON-IOS	WebEx Meetings Server Software	CWMS v4.0	4.0(1)	CWMS-4.0 and up to CWMS-4.0MR3 Security Patch 2
NON-IOS	WebEx Meetings Server Software	CWMS v3.0	3.0(1)	Must update to CWMS 3.0 MR3 Security Patch 4 or higher
NON-IOS	WebEx Meetings Server Software	CWMS v2.0	2.0(1)	All 2.X are impacted.
NON-IOS	WebEx Meetings Server Software	CWMS v2.5	2.5(1)	All releases of 2,X must update to CWMS 3.0 MR3 Security Patch 4 or higher
NON-IOS	WebEx Meetings Server Software	CWMS v2.6	2.6(1)	All releases of 2,X must update to CWMS 3.0 MR3 Security Patch 4 or higher
NON-IOS	WebEx Meetings Server Software	CWMS v2.7	2.7(1)	All releases of 2,X must update to CWMS 3.0 MR3 Security Patch 4 or higher
NON-IOS	WebEx Meetings Server Software	CWMS v2.8	2.8(1)	All releases of 2,X must update to CWMS 3.0 MR3 Security Patch 4 or higher

Defect Information

Defect ID	Headline
CSCvu82419	Browser extensions will no longer support Cisco Webex Meeting Server (CWMS) after February 28, 2021

Problem Description

Browser extensions will no longer support Cisco Webex Meeting Server (CWMS) due to a security update that restricts the domains on which they are allowed to run.

Background

In order to provide enhanced security across Webex meetings, the CWMS extensions used to join a meeting from common browsers (Chrome, Firefox, Safari, and Edge Chromium) are changing. The Webex meetings browser extensions will be set to load only on webex.com domains. New extensions will be enforced/updated on 2021-02-28. After this date, CWMS users will not be able to start or join a meeting unless they update the CWMS software.

Browser extensions are used to join a meeting and play back a recorded meeting. When playing back a recording from the CWMS site, this new CWMS version is required to play back the recorded meeting. The ability to download ARF recordings for offline playback is still available and is not affected by this change.

Microsoft Edge and Apple or Android mobile devices do not use extensions and are not affected by this change.

Problem Symptom

CWMS users will not be able to start or join a meeting after 2021-02-28.

Workaround/Solution

Cisco has posted new CWMS maintenance releases that will provide the necessary capabilities to start a meeting or access a recording. All customers must update to at least one of these releases by 2021-02-28 in order to avoid any service interruption.

Note: CWMS 2.X customers must upgrade to CWMS 3.0 MR3 Security Patch 4 or later.

A valid support contract is required for software download access. Customers without a current support contract should contact their Cisco reseller.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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