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CVE-2026-9501— GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section assertion

CVSS 3.3 · Low EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 14

VendorProductVersion RangeStatus
GNULibreDWG0.1affected
0.2affected
0.3affected
0.4affected
0.5affected
0.6affected
0.7affected
0.8affected
… +6 more rows
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I. Basic Information for CVE-2026-9501

Vulnerability Information
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Vulnerability Title
GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section assertion
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
可达断言
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
GNULibreDWG 0.1 cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9501

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III. Intelligence Information for CVE-2026-9501

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Patches & Fixes for CVE-2026-9501 (1)

Proof of Concept for CVE-2026-9501 (2)

Vendor Pages for CVE-2026-9501 (1)

Same Patch Batch · GNU · 2026-05-25 · 5 CVEs total

CVE-2026-95005.3 MEDIUMGNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow
CVE-2026-95025.3 MEDIUMGNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflow
CVE-2026-95033.3 LOWGNU LibreDWG DWG File decode.c dwg_next_entity null pointer dereference
CVE-2026-95043.3 LOWGNU LibreDWG Dwggrep Utility dwggrep.c bit_convert_TU out-of-bounds

IV. Related Vulnerabilities

Same product: LibreDWG
Same vendor: GNU
Same weakness: CWE-617

V. Comments for CVE-2026-9501

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