CVE-2023-40036 Notepad++ global buffer read overflow in CharDistributionAnalysis::HandleOneChar

2023-08-2519:58:33

CWE-120

GitHub_M

www.cve.org

notepad++

source code editor

global buffer read

overflow

chardistributionanalysis

exploitability

memory leak

vulnerability

patch

unpatched

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

AI Score

6.1

Confidence

High

EPSS

0.001

Percentile

28.9%

JSON

Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to global buffer read overflow in CharDistributionAnalysis::HandleOneChar. The exploitability of this issue is not clear. Potentially, it may be used to leak internal memory allocation information. As of time of publication, no known patches are available in existing versions of Notepad++.

CNA Affected

[
  {
    "vendor": "notepad-plus-plus",
    "product": "notepad-plus-plus",
    "versions": [
      {
        "version": "<= 8.5.6",
        "status": "affected"
      }
    ]
  }
]