CVE-2026-53408

Name: CVE-2026-53408
Creator: NVD / NIST
Published: 2026-06-12T19:16:30.093+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2026-53408 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.21%

11.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-939

Affected Software

Vendor	Product	Versions
Zoom	Meeting Software Development Kit	< 7.0.3
Zoom	Meeting Software Development Kit	< 7.0.4
Zoom	Workplace	< 7.0.3
Zoom	Workplace	< 7.0.4

References

https://www.zoom.com/en/trust/security-bulletin/zsb-26010Vendor Advisory

Timeline

Published: Jun 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-53408?

How severe is CVE-2026-53408?

CVE-2026-53408 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2026-53408?

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-2026-53408?

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

Scan your code now

Source: NVD / NIST