High-severity privilege escalation in widely deployed Zoom Workplace mobile app; CVSS 8.1.
CVE-2026-53408
Privilege escalation in Zoom Workplace via custom URL scheme (Android/iOS).
Is CVE-2026-53408 being exploited?
Not confirmed. CVE-2026-53408 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.21% probability of exploitation in the next 30 days.
How severe is CVE-2026-53408?
CVE-2026-53408 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-53408?
Yes. A fix has been recorded for CVE-2026-53408. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-53408 affect?
CVE-2026-53408 affects Zoom Workplace Android, Zoom Workplace iOS. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-53408?
Update to latest Zoom Workplace version when available
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated network attacker can escalate privileges within the Zoom Workplace mobile app.
Patch when possible
- affected< 7.0.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.