Cyber Resilience

CVE-2026-53407

HighUpdated

Published: 12 June 2026

Published
12 June 2026
Modified
26 June 2026
KEV Added
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Patch
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CVSS Score v3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0023 13.9th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-53407 is a high-severity Improper Authorization in Handler for Custom URL Scheme (CWE-939) vulnerability in Zoom Workplace. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 13.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-939

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
Why these techniques?

The CVE explicitly describes improper authorization in a custom URL scheme handler enabling unauthenticated privilege escalation, which directly maps to exploitation for privilege escalation.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

Affected Assets

zoom
workplace
≤ 7.0.3 · ≤ 7.0.4

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References