What’s Vulnerable › Vulnerabilities

CVE-2021-40719: Adobe Connect Deserialization of Untrusted Data Remote Code Execution

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-21 · updated 2026-06-17
• Weakness: CWE-502

Description

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.

Affected products

• Adobe Connect: through 11.2.3

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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