CISA-confirmed known exploited vulnerability

CVE-2021-44515

Zoho Desktop Central Authentication Bypass Vulnerability

Zoho · Desktop Central

Vulnerability details

Zoho Desktop Central contains an authentication bypass vulnerability that could allow an attacker to execute arbitrary code in the Desktop Central MSP server.

Added to CISA KEV: 2021-12-10

Ransomware campaign use: Unknown

CISA due date: 2021-12-24

Defensive guidance from CISA

Apply updates per vendor instructions.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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