Notepad++ vulnerable to heap buffer write overflow in Utf8_16_Read::convert
CVE-2023-40031

7.8HIGH

Key Information:

Vendor

Notepad-plus-plus

Status
Notepad-plus-plus
Vendor
CVE Published:
25 August 2023

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-40031?

Notepad++ is a popular open-source source code editor that is susceptible to a heap buffer write overflow in the 'Utf8_16_Read::convert' function. This vulnerability could be exploited to execute arbitrary code on affected installations. As of now, versions 8.5.6 and earlier are at risk, with no patches available to address the issue. Users of Notepad++ should remain vigilant and consider upgrading or applying mitigation strategies to protect their systems.

Affected Version(s)

notepad-plus-plus <= 8.5.6

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-2023-40031
Created by webraybtl

References

https://securitylab.github.com/advisories/GHSL-2023-092_N...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.