Heap corruption via unchecked XML channel counts
Published Mar 10, 2026 · Updated Mar 10, 2026
Heap-based buffer overflow in icCurvesFromXml in iccDEV before 2.3.1.5 allows attackers to corrupt heap memory via crafted XML. icMBBFromXml reads input and output channel counts, initializes curve arrays from them, and previously accepted values outside the supported 1-to-15 range, allowing icCurvesFromXml to write past a heap allocation. Exploitation requires a victim to process a crafted ICC XML profile with an affected local tool, and the demonstrated result is heap corruption or a process crash.
Summary
What happened
Heap-based buffer overflow in icCurvesFromXml in iccDEV before 2.3.1.5 allows attackers to corrupt heap memory via crafted XML. icMBBFromXml reads input and output channel counts, initializes curve arrays from them, and previously accepted values outside the supported 1-to-15 range, allowing icCurvesFromXml to write past a heap allocation. Exploitation requires a victim to process a crafted ICC XML profile with an affected local tool, and the demonstrated result is heap corruption or a process crash.
The record
- CVE
- CVE-2026-31796
- Published
- Mar 10, 2026
- Updated
- Mar 10, 2026
- Vendor
- International Color Consortium
- Product
- iccDEV
- Classifications
- CWE-122, CWE-787, CWE-20, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 10, 2026CVE publishedPublication date reported by the CVE source.
- Mar 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.3.1.5
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
- iccFromXml heap-overflow proof of conceptproof 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
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo