{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-110606", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-14T13:07:22.235Z", "datePublished": "2026-10-14T14:16:46.382Z", "dateUpdated": "2026-10-14T14:16:46.382Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-14T14:16:46.382Z"}, "datePublic": "2026-05-07T00:00:00.000Z", "title": "LibreCAD libdxfrw through LC2.2.0 Stack Out-of-Bounds Read via dwgReader18::readFileHeader", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Read", "cweId": "CWE-125", "type": "CWE"}]}], "affected": [{"vendor": "LibreCAD", "product": "libdxfrw", "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThanOrEqual": "LC2.2.0", "status": "affected", "versionType": "custom"}], "collectionURL": "https://github.com/LibreCAD/libdxfrw", "packageURL": "pkg:github/LibreCAD/libdxfrw", "repo": "https://github.com/LibreCAD/libdxfrw"}, {"vendor": "LibreCAD", "product": "LibreCAD", "packageURL": "pkg:github/LibreCAD/LibreCAD", "repo": "https://github.com/LibreCAD/LibreCAD", "versions": [{"version": "0", "lessThanOrEqual": "2.2.1.5", "status": "affected", "versionType": "custom"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:librecad:libdxfrw:*:*:*:*:*:*:*:*", "versionEndIncluding": "lc2.2.0"}, {"vulnerable": true, "criteria": "cpe:2.3:a:librecad:librecad:*:*:*:*:*:*:*:*", "versionEndIncluding": "2.2.1.5"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW"}}], "references": [{"url": "https://github.com/LibreCAD/LibreCAD/issues/2554", "tags": ["issue-tracking"]}, {"url": "https://hackmd.io/@haind-pwn/libdxfrw-dwg-header-oob-read", "tags": ["third-party-advisory"]}, {"url": "https://github.com/LibreCAD/libdxfrw/blob/LC2.2.0/src/intern/dwgreader18.cpp#L248", "tags": ["technical-description"]}, {"url": "https://github.com/LibreCAD/LibreCAD/blob/v2.2.1.5/libraries/libdxfrw/src/intern/dwgreader18.cpp#L248", "tags": ["technical-description"]}, {"url": "https://github.com/LibreCAD/libdxfrw/commit/0c5595930b20917a40ed7c188475eaca624b8ce9", "tags": ["patch"]}, {"url": "https://github.com/LibreCAD/LibreCAD/commit/abd1f4a8e32dbd871c986086227502217200cd4b", "tags": ["patch"]}, {"name": "VulnCheck Advisory: LibreCAD libdxfrw through LC2.2.0 Stack Out-of-Bounds Read via dwgReader18::readFileHeader", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/librecad-libdxfrw-through-lc2-2.0-stack-out-of-bounds-read-via-dwgreader18-readfileheader"}], "credits": [{"lang": "en", "value": "dayzsec", "type": "finder"}, {"lang": "en", "value": "HaiND from the Post and Telecommunication Institute of Technology", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"collectionURL": "https://github.com/LibreCAD/libdxfrw", "defaultStatus": "unaffected", "packageURL": "pkg:github/LibreCAD/libdxfrw", "product": "libdxfrw", "repo": "https://github.com/LibreCAD/libdxfrw", "vendor": "LibreCAD", "versions": [{"lessThanOrEqual": "LC2.2.0", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "packageURL": "pkg:github/LibreCAD/LibreCAD", "product": "LibreCAD", "repo": "https://github.com/LibreCAD/LibreCAD", "vendor": "LibreCAD", "versions": [{"lessThanOrEqual": "2.2.1.5", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-110606", "lastModified": "2026-10-14T15:17:12.303", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-10-14T15:17:12.303", "references": [{"source": "[email protected]", "url": "https://github.com/LibreCAD/LibreCAD/blob/v2.2.1.5/libraries/libdxfrw/src/intern/dwgreader18.cpp#L248"}, {"source": "[email protected]", "url": "https://github.com/LibreCAD/LibreCAD/commit/abd1f4a8e32dbd871c986086227502217200cd4b"}, {"source": "[email protected]", "url": "https://github.com/LibreCAD/LibreCAD/issues/2554"}, {"source": "[email protected]", "url": "https://github.com/LibreCAD/libdxfrw/blob/LC2.2.0/src/intern/dwgreader18.cpp#L248"}, {"source": "[email protected]", "url": "https://github.com/LibreCAD/libdxfrw/commit/0c5595930b20917a40ed7c188475eaca624b8ce9"}, {"source": "[email protected]", "url": "https://hackmd.io/@haind-pwn/libdxfrw-dwg-header-oob-read"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/librecad-libdxfrw-through-lc2-2.0-stack-out-of-bounds-read-via-dwgreader18-readfileheader"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "[email protected]", "type": "Primary"}]}

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