The vulnerability identified as CVE-2026-21500 impacts iccDEV, a set of libraries and tools designed for ICC color management profiles. The vulnerability allows for a stack overflow due to improper handling of XML calculator macro expansions. This issue has an official patch available in version 2.3.1.2, released on January 7, 2026.
According to the Common Vulnerability Scoring System (CVSS) version 3.1, this vulnerability has a base score of 5.5, categorizing it as medium severity. The attack vector is local, and the attack complexity is low, requiring no privileges and user interaction is necessary. The impact on availability is significant, while there is no confidentiality or integrity impact.
Risk to organizations includes potential disruption due to the availability impact, making it critical for affected users to apply the patch promptly. The urgency for defenders is moderate, and timely remediation is essential to maintain operational integrity.
As of now, there is no known public exploit associated with this vulnerability, and it is not listed in the Known Exploited Vulnerabilities (KEV) catalog. However, the potential for exploitation remains a concern, emphasizing the need for vigilance and proactive measures.
Vulnerability Details
The CVE-2026-21500 vulnerability allows attackers to exploit a stack overflow in the XML calculator macro expansion within iccDEV. This flaw is characterized by a CVSS score of 5.5, indicating a medium severity level. The affected versions include all prior to version 2.3.1.2. The vulnerability was disclosed on January 7, 2026, and addresses weaknesses categorized under several CWE identifiers, including CWE-20, CWE-400, CWE-674, CWE-1119, and CWE-787.
Technical Analysis
The root cause of this vulnerability stems from improper processing of XML data, leading to a stack overflow. The attack vector is local, meaning the attacker must have access to the system where iccDEV is installed. Given the low complexity of the attack and the requirement for user interaction, the exploitability is considered medium.
No special privileges are required for an attacker to exploit the vulnerability. The potential impacts include high availability impact, while confidentiality and integrity impacts are nonexistent. Organizations should monitor for any signs of exploitation, particularly in environments using iccDEV.
Risk & Impact Analysis
Organizations using iccDEV should be aware of the risks associated with this vulnerability. The availability impact is significant, which could lead to disruptions in operations where color management is critical. Additionally, with the increasing reliance on local processing, the attack surface becomes more relevant. Organizations should prioritize this vulnerability within their patch management processes.
Given the CVSS score of 5.5 and the absence of a public exploit, organizations are advised to address this vulnerability in their priority patch cycle.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of iccDEV prior to version 2.3.1.2 are affected by this vulnerability. Organizations should ensure they upgrade to the latest version to mitigate risks associated with this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching to version 2.3.1.2 to remediate this vulnerability. In the absence of immediate patching, consider implementing network controls to limit access to systems using iccDEV and monitor for any unusual behavior that may indicate exploitation attempts.
For further security assessments, organizations can benefit from conducting application security assessments to identify potential weaknesses in their systems.
Detection Guidance
To detect possible exploitation of this vulnerability, organizations should monitor logs for anomalies related to XML processing in iccDEV. Behavioral indicators may include unexpected crashes or failures in application functions that utilize color management profiles.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-21500 lies in its demonstration of vulnerabilities in color management systems, which may not traditionally receive extensive scrutiny. As organizations increasingly rely on such tools, understanding and mitigating risks associated with them becomes critical.
Security teams should consider this vulnerability as part of a broader vulnerability management program that addresses both conventional and unconventional attack vectors.
Furthermore, the incident highlights the importance of regular penetration testing to uncover such vulnerabilities before they can be exploited.
Organizations should also educate their teams about the risks associated with software dependencies, especially in color management systems, to reduce exposure to similar vulnerabilities in the future.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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