CVE-2026-30987 is a classic stack-based buffer overflow vulnerability identified in the InternationalColorConsortium's iccDEV library, specifically in versions before 2.3.1.5. The vulnerability arises from the CIccTagNum<>::GetValues() function, which performs a buffer copy operation without properly validating the size of the input data. This lack of boundary checking can lead to stack memory corruption, potentially causing application crashes or enabling arbitrary code execution. The vulnerability is categorized under CWE-120 (Classic Buffer Overflow), CWE-121 (Stack-based Buffer Overflow), and CWE-787 (Out-of-bounds Write), indicating a severe memory safety issue. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability, with an attack vector requiring local access (AV:L), low attack complexity (AC:L), no privileges required (PR:N), but user interaction is necessary (UI:R). The scope remains unchanged (S:U). This vulnerability affects software components that utilize iccDEV for ICC color profile management, which are common in imaging, printing, and color calibration tools. Although no exploits are currently known in the wild, the vulnerability poses a significant risk due to the potential for remote code execution if an attacker can trick a user into processing a malicious ICC profile. The issue was addressed in iccDEV version 2.3.1.5, which includes proper input size validation to prevent buffer overflow.

The vulnerability can lead to severe consequences including arbitrary code execution, denial of service through application crashes, and unauthorized access to sensitive information processed by affected applications. Since ICC profiles are widely used in color management workflows across various industries such as digital imaging, printing, and graphic design, exploitation could compromise systems handling critical visual data. The high severity score indicates that confidentiality, integrity, and availability could all be impacted. Attackers with local access and the ability to induce a user to open or process a crafted ICC profile could exploit this flaw to escalate privileges or execute malicious code. This could lead to broader network compromise if the affected software is part of larger enterprise systems. The absence of known exploits in the wild suggests that the threat is currently theoretical but should be treated proactively due to the ease of exploitation and high impact.

Organizations should immediately upgrade iccDEV to version 2.3.1.5 or later to apply the official patch that fixes the buffer overflow. Until upgrading is possible, restrict local user access to systems running vulnerable versions and implement strict controls on the handling and opening of ICC color profiles, especially those received from untrusted sources. Employ application whitelisting and sandboxing techniques to limit the execution context of software processing ICC profiles. Conduct code audits and fuzz testing on custom or third-party software that integrates iccDEV to identify and remediate similar memory safety issues. Additionally, monitor logs for abnormal crashes or memory corruption events related to color profile processing. Educate users about the risks of opening unsolicited or suspicious image files that may contain malicious ICC profiles. Finally, maintain up-to-date endpoint detection and response (EDR) solutions capable of detecting exploitation attempts targeting buffer overflow vulnerabilities.