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CVE-2025-7997: CWE-125: Out-of-bounds Read in Ashlar-Vellum Cobalt

0
High
VulnerabilityCVE-2025-7997cvecve-2025-7997cwe-125
Published: Wed Sep 17 2025 (09/17/2025, 20:53:17 UTC)
Source: CVE Database V5
Vendor/Project: Ashlar-Vellum
Product: Cobalt

Description

Ashlar-Vellum Cobalt XE File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. 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 XE files. The issue results from the lack of proper validation of user-supplied data, which can result in a read before the start of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26045.

AI-Powered Analysis

AILast updated: 09/25/2025, 00:43:45 UTC

Technical Analysis

CVE-2025-7997 is a high-severity vulnerability affecting Ashlar-Vellum Cobalt version 12 SP1, specifically in the parsing of XE files. The root cause is an out-of-bounds read (CWE-125) due to improper validation of user-supplied data. This flaw allows an attacker to read memory before the start of an allocated data structure, which can be leveraged to execute arbitrary code remotely. Exploitation requires user interaction, such as opening a malicious XE file or visiting a crafted webpage that triggers the vulnerable file parsing. Successful exploitation results in code execution within the context of the current process, potentially allowing full compromise of the affected system. The vulnerability was assigned a CVSS v3.0 base score of 7.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity but requiring user interaction and local access vector (likely due to file opening). No known public exploits are reported yet, but the vulnerability was disclosed by the Zero Day Initiative (ZDI) under identifier ZDI-CAN-26045. The lack of patch links indicates that a fix may not yet be publicly available, increasing the urgency for mitigation. This vulnerability is critical for environments where Ashlar-Vellum Cobalt is used, especially in design and CAD workflows, as it could allow attackers to gain control over systems by tricking users into opening malicious files or visiting malicious sites hosting crafted XE files.

Potential Impact

For European organizations, the impact of CVE-2025-7997 can be significant, particularly for industries relying on Ashlar-Vellum Cobalt for CAD and design tasks, such as manufacturing, engineering, and architecture firms. Successful exploitation could lead to unauthorized access, data theft, or disruption of critical design workflows. Given the ability to execute arbitrary code, attackers could deploy malware, ransomware, or establish persistent footholds within corporate networks. This could result in intellectual property theft, operational downtime, and reputational damage. The requirement for user interaction means social engineering or phishing campaigns could be used to deliver the malicious XE files, increasing the risk in environments with less stringent user awareness training. Additionally, since the vulnerability affects a specialized product, organizations with limited patch management or software inventory processes may be unaware of their exposure, exacerbating risk. The absence of known exploits in the wild currently reduces immediate threat but does not eliminate the risk, especially as exploit code could emerge rapidly after disclosure.

Mitigation Recommendations

1. Immediate identification of all Ashlar-Vellum Cobalt 12 SP1 installations within the organization through asset inventory and software audits. 2. Restrict or disable the opening of XE files from untrusted sources, including email attachments and downloads, using endpoint protection policies and file type restrictions. 3. Implement network-level controls to block access to malicious websites that could host crafted XE files, including URL filtering and DNS security solutions. 4. Enhance user awareness training focused on phishing and social engineering tactics that could deliver malicious files. 5. Employ application whitelisting to prevent unauthorized execution of untrusted files and processes. 6. Monitor endpoint and network logs for unusual behavior indicative of exploitation attempts, such as unexpected process launches or memory access violations. 7. Coordinate with Ashlar-Vellum for timely patch deployment once available; consider contacting vendor support for any interim mitigations or updates. 8. Use sandboxing or isolated environments for opening XE files when possible to contain potential exploitation. 9. Maintain up-to-date backups and incident response plans tailored to potential compromise scenarios involving this vulnerability.

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Technical Details

Data Version
5.1
Assigner Short Name
zdi
Date Reserved
2025-07-21T19:50:21.937Z
Cvss Version
3.0
State
PUBLISHED

Threat ID: 68cb20eac138e352740b9f94

Added to database: 9/17/2025, 8:58:18 PM

Last enriched: 9/25/2025, 12:43:45 AM

Last updated: 10/30/2025, 10:46:34 AM

Views: 20

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