Vienna Symphonic Library Vienna Assistant 1.2.542 Endpoint shouldAcceptNewConnection missing authentication

Summaryinfo

A vulnerability classified as critical was found in Vienna Symphonic Library Vienna Assistant 1.2.542. Affected by this vulnerability is the function shouldAcceptNewConnection of the component Endpoint. Executing a manipulation can lead to missing authentication. The identification of this vulnerability is CVE-2026-24068. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in Vienna Symphonic Library Vienna Assistant 1.2.542. This vulnerability affects the function shouldAcceptNewConnection of the component Endpoint. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The VSL privileged helper does utilize NSXPC for IPC. The implementation of the "shouldAcceptNewConnection" function, which is used by the NSXPC framework to validate if a client should be allowed to connect to the XPC listener, does not validate clients at all. This means that any process can connect to this service using the configured protocol. A malicious process is able to call all the functions defined in the corresponding HelperToolProtocol. No validation is performed in the functions "writeReceiptFile" and “runUninstaller” of the HelperToolProtocol. This allows an attacker to write files to any location with any data as well as execute any file with any arguments. Any process can call these functions because of the missing XPC client validation described before. The abuse of the missing endpoint validation leads to privilege escalation.

The weakness was shared by Florian Haselsteiner. The advisory is shared for download at r.sec-consult.com. This vulnerability was named CVE-2026-24068 since 01/21/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/26/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Software Library

Vendor

• Vienna Symphonic Library

Name

• Vienna Assistant

Version

• 1.2.542

CPE 2.3info

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CPE 2.2info

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