Bug 2547455 (CVE-2026-42616)

Summary: CVE-2026-42616 ntfs-3g: ntfs-3g: Privilege escalation via heap-based buffer overflow in cat()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in NTFS-3G. An attacker can trigger a heap buffer overflow in the ntfscat utility by providing a specially crafted NTFS filesystem image. When the utility attempts to read a file from the malicious image, heap memory is corrupted, which can lead to a Denial of Service (DoS) crash or potentially allow arbitrary code execution.
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Bug Depends On: 2547621, 2547622    
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Description OSIDB Bzimport 2026-10-07 14:13:12 UTC 
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in cat() in ntfscat.c that allows an attacker to corrupt heap memory in the ntfscat binary by crafting a malicious NTFS image. The overflow is triggered by reading a file.