CVE-2026-27691 in iccDEV
Summary
by MITRE • 02/25/2026
iccDEV provides a set of libraries and tools for working with ICC color management profiles. In versions up to and including 2.3.1.4, signed integer overflow in iccFromCube.cpp during multiplication triggers undefined behavior, potentially causing crashes or incorrect ICC profile generation when processing crafted/large cube inputs. Commit 43ae18dd69fc70190d3632a18a3af2f3da1e052a fixes the issue. No known workarounds are available.
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Analysis
by VulDB Data Team • 02/25/2026
The vulnerability identified as CVE-2026-27691 affects the iccDEV color management library ecosystem, specifically targeting versions up to and including 2.3.1.4. This library suite provides essential tools and APIs for handling ICC color profiles, which are critical components in color management systems across various applications including graphic design software, printing systems, and display calibration tools. The flaw exists within the iccFromCube.cpp source file where a signed integer overflow occurs during multiplication operations, creating a scenario that leads to undefined behavior. This type of vulnerability is particularly concerning in color management contexts where precise mathematical operations are essential for accurate color representation and conversion.
The technical implementation of this vulnerability stems from improper handling of integer arithmetic within the cube data processing functions of the ICC profile generation pipeline. When processing crafted or large cube inputs, the multiplication operations fail to account for potential overflow conditions in signed integers, resulting in unpredictable program behavior. The undefined behavior manifests as program crashes or generation of incorrect ICC profiles that may contain corrupted color data or invalid color transformation matrices. This flaw directly maps to CWE-191, which describes signed integer underflow, and CWE-190, which covers integer overflow, both of which are fundamental weaknesses in data processing systems. The vulnerability's impact is amplified by the fact that ICC profiles are widely used across multiple industries for color consistency and accuracy, making the potential for widespread disruption significant.
Operationally, this vulnerability presents a serious risk to color management workflows where systems process external or user-provided cube data. Attackers could exploit this by crafting malicious cube inputs that trigger the integer overflow condition, potentially causing denial of service through application crashes or more insidiously, generating corrupted ICC profiles that would affect color accuracy in downstream applications. The lack of known workarounds means that organizations cannot simply modify their processing workflows to avoid the issue, making the vulnerability particularly dangerous in production environments. Systems relying on iccDEV for color profile generation, especially those in professional graphics, publishing, or manufacturing contexts, face potential data integrity issues that could compromise the entire color management pipeline.
The fix implemented in commit 43ae18dd69fc70190d3632a18a3af2f3da1e052a addresses the root cause by properly handling integer overflow conditions during multiplication operations. This remediation follows established security practices for preventing integer overflow vulnerabilities and aligns with the ATT&CK technique T1203, which covers exploitation of software vulnerabilities through integer overflows. Organizations should prioritize updating to the patched version of iccDEV to mitigate this risk, as the vulnerability could be exploited in supply chain attacks targeting color management systems or in targeted attacks against applications that depend on ICC profile processing. The vulnerability demonstrates the importance of robust input validation and arithmetic overflow protection in systems handling precision-critical data processing, particularly in domains where mathematical accuracy directly impacts the quality and reliability of output.