EUVD-2026-31788
GHSA-5ppw-fxgq-3w56
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
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: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
2DescriptionCVE.org
A security flaw has been discovered in GNU LibreDWG up to 0.14. The affected element is the function match_BLOCK_HEADER of the file dwggrep.c of the component Dwggrep Utility. Performing a manipulation results in null pointer dereference. The attack requires a local approach. The exploit has been released to the public and may be used for attacks.
AnalysisAI
Null pointer dereference in GNU LibreDWG's dwggrep utility crashes the application when processing a maliciously crafted DWG file. The vulnerability resides in the match_BLOCK_HEADER function within dwggrep.c and affects all tracked releases from version 0.1 through 0.14. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must have local access and low-level OS privileges (PR:L per CVSS vector) on the system where dwggrep is installed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is low. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local user with standard account privileges places a crafted DWG file in a location processed by dwggrep - for example, in a shared directory monitored by an automated scan script. When dwggrep processes the file, match_BLOCK_HEADER dereferences a null pointer, causing the utility to crash and producing a denial of service for that process. … |
| Remediation | No vendor-released patch has been identified at time of analysis - no fixed version is referenced in any advisory, CPE data, or the upstream GitHub issue #1247. … Detailed patch versions, workarounds, and compensating controls in full report. |
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