CVE-2026-30984 is a heap out-of-bounds read vulnerability identified in the InternationalColorConsortium's iccDEV library, specifically within the CIccCalculatorFunc::ApplySequence() function. This function is part of the iccDEV suite that handles ICC color management profiles, which are critical in ensuring color consistency across devices and software. The vulnerability arises when the function reads beyond the allocated heap memory boundaries, leading to an application crash due to memory access violations. This flaw affects all iccDEV versions prior to 2.3.1.5 and requires user interaction to trigger, with no privileges needed, and the attack vector is local. The CVSS 3.1 base score is 6.1, reflecting medium severity, with the vector indicating local attack vector (AV:L), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), unchanged scope (S:U), low confidentiality impact (C:L), no integrity impact (I:N), and high availability impact (A:H). Although the vulnerability does not allow for code execution or data manipulation, the out-of-bounds read can cause denial of service by crashing applications that rely on iccDEV for color profile processing. No public exploits have been reported yet, but the issue is resolved in version 2.3.1.5. This vulnerability is categorized under CWE-125 (Out-of-bounds Read) and CWE-129 (Improper Validation of Array Index), indicating improper memory handling and insufficient boundary checks in the affected function.

The primary impact of CVE-2026-30984 is denial of service through application crashes when processing ICC color profiles using vulnerable iccDEV versions. This can disrupt workflows in industries relying on accurate color management, such as digital media production, printing, photography, and software development involving image processing. While the confidentiality and integrity impacts are low or none, availability is significantly affected due to potential crashes. Organizations embedding iccDEV in their software or using tools dependent on it may experience service interruptions, degraded user experience, or operational delays. Since exploitation requires local access and user interaction, remote exploitation risk is limited, but insider threats or compromised user accounts could trigger the vulnerability. The lack of known exploits reduces immediate risk, but unpatched systems remain vulnerable to accidental crashes or targeted denial of service attacks. The vulnerability could also affect automated systems processing large volumes of ICC profiles, leading to cascading failures or resource exhaustion.

To mitigate CVE-2026-30984, organizations should immediately update iccDEV to version 2.3.1.5 or later, where the vulnerability is fixed. For environments where immediate patching is not feasible, implement strict access controls to limit local user access to systems running vulnerable iccDEV versions. Monitor applications that utilize iccDEV for unexpected crashes or abnormal behavior indicative of exploitation attempts. Employ application whitelisting and sandboxing to contain potential crashes and prevent escalation. Developers integrating iccDEV should validate and sanitize all ICC profile inputs rigorously to reduce malformed data risks. Additionally, consider implementing runtime memory protection mechanisms such as AddressSanitizer or similar tools during development and testing to detect out-of-bounds reads early. Maintain up-to-date backups and incident response plans to quickly recover from denial of service incidents. Finally, educate users about the risks of opening untrusted ICC profiles to minimize triggering the vulnerability through user interaction.