CVE-2021-40719

Adobe Connect Deserialization of Untrusted Data Remote Code Execution

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Published Oct 21, 2021 CVSS 3.0 · 9.8 Critical EPSS 3.5% KEV · Not listed

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

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Adobe

Connect

affected

Version	Status	Constraints
`unspecified`	affected	≤ 11.2.3
`unspecified`	affected	≤ None

Configuration 1 [-]

cpe:2.3:a:adobe:connect:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available

Metrics

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 3.5% (3.532% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

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

History

Apr 23, 2025 8:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Adobe Connect

Weaknesses

CWE-502

Sources

CVE record Updated: Apr 23, 2025, 7:24 PM

Status: PUBLISHED
Assigner: adobe
Published: Oct 21, 2021, 7:33 PM
Updated: Apr 23, 2025, 7:24 PM
Reserved: Sep 8, 2021, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 4, 2024, 2:51 AM

Updated: Aug 4, 2024, 2:51 AM

NVD Updated: Jun 17, 2026, 4:07 AM

Status: Modified
Published: Oct 21, 2021, 8:15 PM
Modified: Jun 17, 2026, 4:07 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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