GNU LibreDWG Dwggrep Utility dwggrep.c match_BLOCK_HEADER null pointer dereference
Published May 26, 2026
4.8
MEDIUMCVSS 4.0
EPSS 0.16%
Description
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.
Affected products
-
- Version 0.1StatusaffectedConstraints-
- Version 0.10StatusaffectedConstraints-
- Version 0.11StatusaffectedConstraints-
- Version 0.12StatusaffectedConstraints-
- Version 0.13StatusaffectedConstraints-
- Version 0.14StatusaffectedConstraints-
- Version 0.2StatusaffectedConstraints-
- Version 0.3StatusaffectedConstraints-
- Version 0.4StatusaffectedConstraints-
- Version 0.5StatusaffectedConstraints-
- Version 0.6StatusaffectedConstraints-
- Version 0.7StatusaffectedConstraints-
- Version 0.8StatusaffectedConstraints-
- Version 0.9StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
1 other source (NVD) ▾
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C
1 other source (NVD) ▾
AV:L/AC:L/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed May 26, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
May–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.16% (0.00160) | 4.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.14% (0.00143) | 3.86th | v5 (v2026.06.15) |
| May 26, 2026 | 0.01% (0.00013) | 2.13th | v4 (v2025.03.14) |
References (6)
- https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg exploit
- https://github.com/LibreDWG/libredwg/issues/1247 issue-tracking
- https://vuldb.com/submit/814273 third-party-advisory
- https://vuldb.com/vuln/365548 vdb-entrytechnical-description
- https://vuldb.com/vuln/365548/cti signaturepermissions-required
- https://www.gnu.org/ product
| Link | Providers | Tags |
|---|---|---|
| https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg | exploit | |
| https://github.com/LibreDWG/libredwg/issues/1247 | issue-tracking | |
| https://vuldb.com/submit/814273 | third-party-advisory | |
| https://vuldb.com/vuln/365548 | vdb-entrytechnical-description | |
| https://vuldb.com/vuln/365548/cti | signaturepermissions-required | |
| https://www.gnu.org/ | product |
Change history (0)
No recorded changes yet.