CVE-2026-25634 is a vulnerability classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) affecting the iccDEV library maintained by the InternationalColorConsortium. The issue arises in versions prior to 2.3.1.4 within the CIccTagMultiProcessElement::Apply() function, specifically in the handling of SrcPixel and DestPixel buffers on the stack. These buffers overlap improperly, which can lead to memory corruption, including potential buffer overflows or underflows. Such memory corruption can be exploited to execute arbitrary code, cause denial of service, or leak sensitive information. The vulnerability requires local access (AV:L) and user interaction (UI:R), with low attack complexity (AC:L) and no privileges required (PR:N). The scope is unchanged (S:U), but the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). This means an attacker who can trigger the vulnerability could fully compromise the affected system. The vulnerability is fixed in iccDEV version 2.3.1.4. No public exploits are known at this time, but the severity and nature of the flaw warrant prompt remediation. The iccDEV library is used for ICC color profile manipulation, which is common in imaging, printing, and color management workflows, often integrated into various software products and platforms.

For European organizations, the impact of this vulnerability can be significant, especially for those in industries relying on color management such as digital media production, printing, photography, and software development involving image processing. Exploitation could lead to arbitrary code execution, enabling attackers to gain control over affected systems, exfiltrate sensitive data, or disrupt operations through denial of service. This could compromise intellectual property, client data, and operational continuity. Given the local access and user interaction requirements, the threat is more relevant in environments where users might open or process malicious ICC profiles, such as graphic design firms or print service providers. The high impact on confidentiality, integrity, and availability means that successful exploitation could have severe business and reputational consequences. Additionally, organizations with integrated workflows using iccDEV indirectly via third-party software may also be at risk if those products have not updated the vulnerable library.

The primary mitigation is to upgrade all instances of the iccDEV library to version 2.3.1.4 or later, where the vulnerability is fixed. Organizations should conduct an inventory of software and systems that utilize iccDEV, including third-party applications, to ensure they are updated. Implement strict controls on the handling and processing of ICC profiles, especially those from untrusted sources, to reduce the risk of triggering the vulnerability. Employ application whitelisting and sandboxing for software that processes ICC profiles to contain potential exploitation attempts. Regularly monitor and audit systems for unusual behavior indicative of exploitation attempts. Educate users about the risks of opening or processing files from untrusted origins. Finally, coordinate with software vendors to confirm that their products have integrated the patched iccDEV version.