CVE-2026-110606

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.

CVSS v3 3.3 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/LibreCAD/LibreCAD/blob/v2.2.1.5/libraries/libdxfrw/src/intern/dwgreader18.cpp#L248
https://github.com/LibreCAD/LibreCAD/commit/abd1f4a8e32dbd871c986086227502217200cd4b
https://github.com/LibreCAD/LibreCAD/issues/2554
https://github.com/LibreCAD/libdxfrw/blob/LC2.2.0/src/intern/dwgreader18.cpp#L248
https://github.com/LibreCAD/libdxfrw/commit/0c5595930b20917a40ed7c188475eaca624b8ce9
https://hackmd.io/@haind-pwn/libdxfrw-dwg-header-oob-read
https://www.vulncheck.com/advisories/librecad-libdxfrw-through-lc2-2.0-stack-out-of-bounds-read-via-dwgreader18-readfileheader
https://github.com/LibreCAD/LibreCAD/issues/2554

Configurations

No configuration.

History

20 Oct 2026, 02:17

Type	Values Removed	Values Added
References	~~() https://github.com/LibreCAD/LibreCAD/issues/2554 -~~	() https://github.com/LibreCAD/LibreCAD/issues/2554 -

14 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-14 15:17

Updated : 2026-10-20 02:17

NVD link : CVE-2026-110606

Mitre link : CVE-2026-110606

CVE.ORG link : CVE-2026-110606

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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