EUVD-2026-31737
GHSA-f6gf-3cj7-46vv
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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
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CVSS VectorNVD
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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
3DescriptionCVE.org
A vulnerability was determined in GNU LibreDWG up to 0.14. The impacted element is the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. A patch should be applied to remediate this issue.
AnalysisAI
Reachable assertion (CWE-617) in GNU LibreDWG's decompress_R2004_section function allows a local low-privileged attacker to crash the dwgread utility by supplying a malformed R2004-format DWG file with out-of-bounds decompression parameters. All releases from 0.1 through 0.14 are confirmed affected. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Local system access with at minimum standard user (non-root) privileges is required (CVSS AV:L/PR:L); remote or unauthenticated exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 1.9 accurately reflects the constrained threat: attack vector is local (AV:L), privileges required are low (PR:L), and impact is exclusively a limited availability loss (VA:L) against the parsing process - no confidentiality, integrity, or system-scope impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local user with a standard (non-root) account downloads the publicly available proof-of-concept `.dwg` file from https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_assert_fail_decompress_R2004_section.dwg and passes it to `dwgread`. The malformed R2004 decompression offsets trigger the reachable assertion in `decompress_R2004_section`, causing `dwgread` to abort immediately. … |
| Remediation | Build from or update to a revision at or after upstream commit e501cb9926c1e9a07a0d1cc997f3e69e9be801c9 from the LibreDWG GitHub repository (https://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9); note that a formally released patched version number has not been independently confirmed at time of analysis - only the upstream commit is verified. … Detailed patch versions, workarounds, and compensating controls in full report. |
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