{"id":"CVE-2026-110606","summary":"LibreCAD libdxfrw through LC2.2.0 Stack Out-of-Bounds Read via dwgReader18::readFileHeader","details":"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.","modified":"2026-10-16T02:47:41.960323182Z","published":"2026-10-14T14:16:46.382Z","database_specific":{"cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110606.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110606.json"},{"type":"ADVISORY","url":"https://hackmd.io/@haind-pwn/libdxfrw-dwg-header-oob-read"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110606"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/librecad-libdxfrw-through-lc2-2.0-stack-out-of-bounds-read-via-dwgreader18-readfileheader"},{"type":"REPORT","url":"https://github.com/LibreCAD/LibreCAD/issues/2554"},{"type":"FIX","url":"https://github.com/LibreCAD/LibreCAD/commit/abd1f4a8e32dbd871c986086227502217200cd4b"},{"type":"FIX","url":"https://github.com/LibreCAD/libdxfrw/commit/0c5595930b20917a40ed7c188475eaca624b8ce9"},{"type":"PACKAGE","url":"https://github.com/LibreCAD/LibreCAD"},{"type":"PACKAGE","url":"https://github.com/LibreCAD/libdxfrw"},{"type":"ARTICLE","url":"https://github.com/LibreCAD/LibreCAD/blob/v2.2.1.5/libraries/libdxfrw/src/intern/dwgreader18.cpp#L248"},{"type":"ARTICLE","url":"https://github.com/LibreCAD/libdxfrw/blob/LC2.2.0/src/intern/dwgreader18.cpp#L248"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/librecad/libdxfrw","events":[{"introduced":"0"},{"fixed":"0c5595930b20917a40ed7c188475eaca624b8ce9"}],"database_specific":{"source":"REFERENCES"}},{"type":"GIT","repo":"https://github.com/librecad/librecad","events":[{"introduced":"0"},{"fixed":"0cd56672320f298c6d8f8fc9f006cfa85d6e6221"},{"fixed":"7ebab007d9eb4c68609388b835a2487648f0877b"},{"fixed":"abd1f4a8e32dbd871c986086227502217200cd4b"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"LC2.2.0"},{"fixed":"2.2.1.5"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["LC2.2.0","1.1.0-rc1","1.0.1","1.0.0","v0.5.10","continuous","downloads-latest","v2.2.1.4","2.2.1-latest","2.2.1.3_rc-latest","v2.2.1.3","2.2.1.1_rc-latest","v2.2.1.2","v2.2.1.1","2.2.1_rc-latest","v2.2.1","2.2.1_rc5","2.2.1_rc4","2.2.1_rc3","2.2.2_alpha-latest","2.2.1_rc2","latest","2.2.2_alpha1","2.2.2-alpha2","2.2.1_rc1","2.2.0.2","2.2.0","2.2.1_alpha","2.2.0-rc4","2.2.0-rc3","2.2.0-rc2","2.2.0-rc1","2.1.0-alpha","2.0.6","2.0.0","2.0.0rc3","1.0.0beta5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110606.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}