Adobe Connect up to 24.0 deserialization

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Adobe Connect up to 24.0 and classified as critical. The impacted element is an unknown function. This manipulation causes deserialization. The identification of this vulnerability is CVE-2025-27203. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Adobe Connect up to 24.0. It has been declared as critical. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Adobe Connect versions 24.0 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could lead to arbitrary code execution by an attacker. Exploitation of this issue does require user interaction and scope is changed.

It is possible to read the advisory at helpx.adobe.com. This vulnerability is known as CVE-2025-27203 since 02/19/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 241989 (Adobe Connect <= 24 Arbitrary Code Execution Vulnerability (APSB25-61)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (241989) and EUVD (EUVD-2025-20691). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.6
CNA Vector (adobe): 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 241989
Nessus Name: Adobe Connect <= 24 Arbitrary Code Execution Vulnerability (APSB25-61)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/19/2025 CVE reserved
07/09/2025 +139 days Advisory disclosed
07/09/2025 +0 days VulDB entry created
07/18/2025 +9 days VulDB entry last update

Sourcesinfo

Vendor: adobe.com

Advisory: apsb25-61
Status: Confirmed

CVE: CVE-2025-27203 (🔒)
GCVE (CVE): GCVE-0-2025-27203
GCVE (VulDB): GCVE-100-315619
EUVD: 🔒

Entryinfo

Created: 07/09/2025 05:29
Updated: 07/18/2025 23:00
Changes: 07/09/2025 05:29 (63), 07/09/2025 19:21 (1), 07/12/2025 01:49 (2), 07/18/2025 23:00 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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