CVE-2023-40036

mediumpriority · track · 22EPSS 0.004 · 31 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.38% (31st) EPSS
CVSS 5.5 · medium
Is it mine?
6 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-26

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++.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedtrumpf_psirt

    Please download the replacement tool [here](https://trumpf.sharepoint.com/sites/SCC%20Software%20Download%20Portal/Shared%20Documents/Forms/AllItems.aspx?id=%2Fsites%2FSCC%20Software%20Download%20Portal%2FShared%20Documents%2FOutgoing%2DFiles%2FSecurity%2FReplaceTools%5FPR501709&p=true&fromShare=true&ga=1).

  • Mitigationtrumpf_psirt

    For additional questions please contact your TRUMPF Service with the PR number 501709.

02

cvss

Technical severity, 0–10. One row per scoring source.

5.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6
v3.15.5mediumAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU
v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · ENISA EU
v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · security-advisories@github.comexploitability 1.8 · impact 3.6
v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · TRUMPF PSIRT
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-120USprimaryCWE-119USCWE-120USCWE-120US
05

affected products (6)

Products and version ranges known to be affected.

06

advisories (2)

Vendor and ecosystem advisories describing this.

  • VDE-2024-003TRUMPF: Multiple products include a vulnerable version of Notepad++2024-01-23csaf · trumpf_psirtDE

    The TRUMPF products that are listed above contain a vulnerable version of Notepad++. This version isbeing installed for support purposes only, so there is no danger of triggering this vulnerability inNotepad++ during normal operations. Nevertheless, TRUMPF recommends mitigation of thisvulnerability.When editing a specially crafted file containing UTF-8 characters in Notepad++ (Versions up to 8.5.6) and converting that file to UTF-16, a buffer overflow vulnerability can be exploited that allows an attacker to execute arbitrary code to take over the whole system.

  • WID-SEC-W-2023-2188Notepad++: Mehrere Schwachstellen ermöglichen CodeausführungDeutsch2023-08-27csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Notepad++ ausnutzen, um beliebigen Programmcode auszuführen.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundnvdtrumpf_psirtNVDCVE.orgMITRE
published 2023-08-25modified 2026-06-17
10

references (4)

External citations — patches, advisories, analysis.

scry

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