EUVD-2026-31740
GHSA-mxm7-v873-f6m3
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
Lifecycle Timeline
4DescriptionCVE.org
A vulnerability was identified in GNU LibreDWG up to 0.14. This affects the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. To fix this issue, it is recommended to deploy a patch.
AnalysisAI
Heap-based buffer overflow in GNU LibreDWG's dwgread utility (versions 0.1 through 0.14) allows a local attacker with low privileges to corrupt heap memory by supplying a specially crafted R2004-format DWG file. The vulnerable function decompress_R2004_section in src/decode.c fails to validate decompression offset and size parameters before writing, enabling out-of-bounds heap writes with partial confidentiality, integrity, and availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local system access with at least low-privilege user credentials (CVSS PR:L, AV:L) on a host where GNU LibreDWG 0.1 through 0.14 is installed and the dwgread utility is accessible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Despite the presence of a public POC, multiple signals converge on low real-world risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local user with standard (low-privilege) access on a system running LibreDWG 0.14 or earlier crafts or downloads a malicious DWG file containing an R2004 section with invalid comp_bytes and comp_offset values - a sample is publicly available at https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_overflow_decompress_R2004_section.dwg. The user passes this file to the dwgread utility, triggering decompress_R2004_section to write beyond the bounds of the dec output buffer on the heap. … |
| Remediation | Apply the upstream patch available at https://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9, which adds out-of-bounds validation to decompress_R2004_section. … Detailed patch versions, workarounds, and compensating controls in full report. |
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