Ashlar-Vellum Graphite VC6 File Parser uninitialized pointer

Summaryinfo

A vulnerability classified as critical has been found in Ashlar-Vellum Graphite. This vulnerability affects unknown code of the component VC6 File Parser. The manipulation leads to uninitialized pointer. This vulnerability is traded as CVE-2025-7978. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Ashlar-Vellum Graphite (version now known) and classified as critical. This issue affects some unknown processing of the component VC6 File Parser. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. Using CWE to declare the problem leads to CWE-824. The product accesses or uses a pointer that has not been initialized. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Ashlar-Vellum Graphite VC6 File Parsing Uninitialized Variable Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Graphite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of VC6 files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25459.

The advisory is shared at zerodayinitiative.com. The identification of this vulnerability is CVE-2025-7978. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/18/2025).

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

Vendor

• Ashlar-Vellum

Name

• Graphite

License

• commercial

CPE 2.3info

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CPE 2.2info

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