CVE-2026-30979 is a heap-based buffer overflow vulnerability identified in the InternationalColorConsortium's iccDEV library, specifically in the CIccCalculatorFunc::InitSelectOp() function. This function fails to properly check the size of input data before copying it into a heap buffer, leading to classic buffer overflow conditions. When exploited, this flaw can cause memory corruption, potentially resulting in application crashes or arbitrary code execution. The vulnerability requires local user interaction, meaning an attacker must have local access and trigger the vulnerable function deliberately. The affected versions are all prior to 2.3.1.5, where the issue has been resolved. The vulnerability is classified under multiple CWEs related to buffer overflows (CWE-120, CWE-122, CWE-787), indicating improper memory handling. The CVSS v3.1 base score is 7.8, with vector AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, highlighting that while the attack vector is local and requires user interaction, the impact on confidentiality, integrity, and availability is high. No public exploits have been reported yet, but the vulnerability poses a significant risk to systems using iccDEV for ICC profile processing, which is common in color management workflows in graphic design, printing, and imaging industries.

The vulnerability allows an attacker with local access and the ability to interact with the vulnerable function to cause memory corruption, leading to potential application crashes or arbitrary code execution. This can compromise the confidentiality, integrity, and availability of affected systems. Organizations relying on iccDEV for color profile management in imaging, printing, or graphic design environments may face disruption of critical workflows or unauthorized code execution, potentially leading to broader system compromise if the vulnerable component runs with elevated privileges. The local attack vector limits remote exploitation but insider threats or compromised local accounts could leverage this flaw. The high CVSS score reflects the severe consequences despite the limited attack surface. Additionally, the lack of known exploits in the wild suggests a window of opportunity for defenders to patch before active exploitation occurs.

1. Immediately upgrade all instances of iccDEV to version 2.3.1.5 or later, where the vulnerability is patched. 2. Restrict local user access to systems running vulnerable versions of iccDEV, limiting the number of users who can trigger the vulnerable function. 3. Implement strict application whitelisting and privilege separation to reduce the impact of potential exploitation. 4. Monitor local user activities for unusual interactions with color management tools or libraries. 5. Employ memory protection mechanisms such as Address Space Layout Randomization (ASLR) and Data Execution Prevention (DEP) to mitigate exploitation attempts. 6. Conduct code audits and fuzz testing on custom integrations with iccDEV to detect similar memory handling issues. 7. Educate users about the risks of executing untrusted local code or files that might trigger the vulnerability. 8. Maintain up-to-date backups and incident response plans to quickly recover from potential exploitation consequences.