CVE-2021-40719

9.8 criticalEPSS 3.5%

Critical (9.8) in adobe connect. EPSS 3.5% chance of exploitation in the next 30 days.

Adobe Connect version 11.2.3 (and earlier) is affected by a Deserialization of Untrusted Data vulnerability to achieve arbitrary method invocation when AMF messages are deserialized on an Adobe Connect server. An attacker can leverage this to execute remote code execution on the server.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.5% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2021-10-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

adobe:connect

References

https://helpx.adobe.com/security/products/connect/apsb21-91.html
https://helpx.adobe.com/security/products/connect/apsb21-91.html

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