CVE-2026-24405 is a heap buffer overflow vulnerability identified in the InternationalColorConsortium’s iccDEV library, specifically in versions 2.3.1.1 and earlier. The vulnerability exists in the CIccMpeCalculator::Read() function, which is responsible for reading and processing ICC color management profiles. ICC profiles are widely used to ensure consistent color representation across devices such as monitors, printers, and cameras. The flaw stems from improper input validation (CWE-20) and unsafe handling of user-controllable input embedded within ICC profile data or other structured binary blobs, leading to a heap buffer overflow (CWE-122). This memory corruption can be exploited remotely over a network (AV:N) without privileges (PR:N), but requires user interaction (UI:R), such as opening a malicious ICC profile or file containing such a profile. Successful exploitation can result in denial of service by crashing the application, manipulation of color profile data to bypass application logic, or even arbitrary code execution, potentially allowing attackers to take control of affected systems. The vulnerability has been fixed in iccDEV version 2.3.1.2. No known exploits have been reported in the wild yet, but the high CVSS score of 8.8 indicates a serious threat that should be addressed promptly.

For European organizations, the impact of CVE-2026-24405 is significant, especially those involved in industries relying heavily on color management workflows such as printing, graphic design, photography, and manufacturing. Exploitation could lead to denial of service, disrupting critical imaging and printing operations, or worse, allow attackers to execute arbitrary code, potentially compromising sensitive data or gaining footholds in enterprise networks. Manipulation of ICC profiles could also lead to subtle data integrity issues, affecting product quality or branding consistency. Given the network attack vector and lack of required privileges, attackers could target exposed services or trick users into opening malicious files, increasing the risk of widespread compromise. The vulnerability’s presence in a foundational library means multiple applications and systems could be indirectly affected, amplifying the potential impact across sectors. This could affect supply chains and media production workflows critical to European economies.

European organizations should immediately upgrade all instances of iccDEV to version 2.3.1.2 or later to remediate this vulnerability. Where upgrading is not immediately possible, implement strict input validation and sandboxing around any applications processing ICC profiles to limit exposure. Employ network-level protections such as intrusion detection systems (IDS) and firewalls to monitor and block suspicious traffic related to ICC profile handling. Educate users about the risks of opening untrusted files containing ICC profiles, especially from unknown sources. Conduct thorough audits of software dependencies to identify all uses of iccDEV and ensure they are patched. Additionally, implement application whitelisting and endpoint protection to detect and prevent exploitation attempts. Regularly monitor vendor advisories for updates or exploit reports related to this vulnerability.