Bug 2552269 (CVE-2026-110606)

Summary: CVE-2026-110606 libdxfrw: librecad: libdxfrw: Denial of Service via crafted DWG file
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: low    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in libdxfrw. An out-of-bounds read vulnerability occurs when parsing drawing (DWG) files due to improper handling of non-null-terminated buffers in the file header reader. By convincing a user to open a specially crafted DWG file, an attacker could trigger an application crash, resulting in a Denial of Service (DoS).
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Bug Depends On: 2554392, 2554393, 2554394    
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Description OSIDB Bzimport 2026-10-14 14:33:55 UTC
LibreCAD libdxfrw through LC2.2.0 (LibreCAD through 2.2.1.5) contains a stack-based out-of-bounds read vulnerability in dwgReader18::readFileHeader() caused by calling strlen on non-NUL-terminated buffers. Attackers can supply a crafted AC1018, AC1024 or AC1027 DWG file without NUL bytes in the decrypted header to read adjacent stack memory and crash the process.