// For flags

CVE-2023-40031

Notepad++ vulnerable to heap buffer write overflow in Utf8_16_Read::convert

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to heap buffer write overflow in `Utf8_16_Read::convert`. This issue may lead to arbitrary code execution. As of time of publication, no known patches are available in existing versions of Notepad++.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2023-08-08 CVE Reserved
  • 2023-08-25 CVE Published
  • 2023-09-08 First Exploit
  • 2024-09-26 EPSS Updated
  • 2024-10-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • CWE-122: Heap-based Buffer Overflow
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Notepad-plus-plus
Search vendor "Notepad-plus-plus"
 Notepad\+\+
Search vendor "Notepad-plus-plus" for product "Notepad\+\+"
 <= 8.5.6
Search vendor "Notepad-plus-plus" for product "Notepad\+\+" and version " <= 8.5.6"
-
Affected