Zimbra security advisory (AV26-721)

Introduction to Malware Binary Triage (IMBT) Course

Looking to level up your skills? Get 10% off using coupon code: MWNEWS10 for any flavor.

Enroll Now and Save 10%: Coupon Code MWNEWS10

Note: Affiliate link – your enrollment helps support this platform at no extra cost to you.

  <div>
<div>
        <div><p><strong>Serial number:</strong> AV26-721<br /><strong>Date:</strong> July&nbsp;20, 2026</p>

On July 20, 2026, Zimbra published a security advisory to address vulnerabilities in the following product:

  • Zimbra Collaboration Suite (ZCS) Classic Web Client – versions prior to v10.1.20

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

</div>

Article Link: Zimbra security advisory (AV26-721) - Canadian Centre for Cyber Security