Heap over-read via miscounted if-else operations
Published Jan 13, 2026 · Updated Jan 13, 2026
Heap-buffer over-read in iccDEV before 2.3.1.2 allows attackers to read beyond allocated memory through a crafted ICC profile. CIccCalculatorFunc::DescribeSequence miscounts the operations remaining after if and else markers, so recursion advances SIccCalcOp::Describe beyond the heap-allocated operation array. Exploitation requires a user or consuming application to process the profile; the public reproduction reaches the over-read through the iccToXml conversion tool.
Summary
What happened
Heap-buffer over-read in iccDEV before 2.3.1.2 allows attackers to read beyond allocated memory through a crafted ICC profile. CIccCalculatorFunc::DescribeSequence miscounts the operations remaining after if and else markers, so recursion advances SIccCalcOp::Describe beyond the heap-allocated operation array. Exploitation requires a user or consuming application to process the profile; the public reproduction reaches the over-read through the iccToXml conversion tool.
The record
- CVE
- CVE-2026-22861
- Published
- Jan 13, 2026
- Updated
- Jan 13, 2026
- Vendor
- International Color Consortium
- Product
- iccDEV
- Classifications
- CWE-120, CWE-130, CWE-252, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 13, 2026CVE publishedPublication date reported by the CVE source.
- Jan 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.3.1.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Crafted ICC profile reproduction for SIccCalcOp::Describeproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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