Buffer Overflow Vulnerability in GNU Barcode by GNU
CVE-2018-25154

8.5HIGH

Key Information:

Vendor

The Gnu Project | Free Software Foundation, Inc.

Status
Gnu Barcode
Vendor
CVE Published:
24 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25154?

GNU Barcode version 0.99 is affected by a buffer overflow vulnerability in the code 93 encoding process. This flaw allows attackers to exploit boundary errors during input file processing, potentially leading to memory corruption and enabling the execution of arbitrary code on the affected system. Proper validation of input data is essential to prevent exploitation and ensure system integrity.

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Affected Version(s)

GNU Barcode 0.99

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-2018-25154 - Proof of Concept

References

https://www.exploit-db.com/exploits/44797
exploit
https://www.gnu.org/software/barcode/
product
https://directory.fsf.org/wiki/Barcode
product

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LiquidWorm as Gjoko Krstic of Zero Science Lab
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