Denial of Service in TextPad 8.1.2 by Long Buffer Input
CVE-2018-25271

6.9MEDIUM

Key Information:

Vendor

Textpad

Status
Textpad
Vendor
CVE Published:
22 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25271?

TextPad 8.1.2 contains a denial of service vulnerability that enables local attackers to crash the application by providing an overly long buffer string via the Run command interface. By submitting a 5000-byte payload into the Command field through Tools > Run, the application is susceptible to a buffer overflow, resulting in its termination. This vulnerability underscores the importance of input validation in software applications.

Affected Version(s)

Textpad 8.1.2

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-2018-25271 - Proof of Concept

References

https://www.exploit-db.com/exploits/45956
exploit
https://textpad.com
product
https://www.textpad.com/download/v81/win32/txpeng812-32.zip
product

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
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

Gionathan "John" Reale
.