Memory Management Vulnerability in GNU LibreDWG Dwgread Utility
CVE-2026-9501

4.8MEDIUM

Key Information:

Vendor

Gnu
Status
Libredwg
Vendor
CVE Published:
25 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9501?

A vulnerability exists in the GNU LibreDWG Dwgread Utility that affects the decompress_R2004_section function. This flaw may be exploited through local execution, leading to a reachable assertion during operation. A public disclosure of this exploit has occurred, emphasizing the need for immediate action. Users should apply the available patch (commit e501cb9926c1e9a07a0d1cc997f3e69e9be801c9) to address this issue efficiently.

Affected Version(s)

LibreDWG 0.1

LibreDWG 0.2

LibreDWG 0.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-9501 - Proof of Concept

References

https://vuldb.com/vuln/365483
vdb-entrytechnical-description
https://vuldb.com/vuln/365483/cti
signaturepermissions-required
https://vuldb.com/submit/814250
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

pwn3rd (VulDB User)
.