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

5.5 Medium

CVSS3

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

6.1 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

20.9%

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"
      }
    ]
  }
]