CVE-2025-56383

highpriority · track · 10EPSS 0.004 · 31 %ileexploit · PoCDEEURU

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

0.38% (31st) EPSS

CVSS 8.4 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

Notepad++ v8.8.3 has a DLL hijacking vulnerability, which can replace the original DLL file to execute malicious code. NOTE: this is disputed by multiple parties because the behavior only occurs when a user installs the product into a directory tree that allows write access by arbitrary unprivileged users.

cvss

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

8.4

010

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

v3.18.4highAV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.4highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.4highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 2.5 · impact 5.9

v3.17.9highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-427USCWE-427US

exploits (2)

Public proof-of-concept and weaponised exploit code.

NewComrade12211/CVE-2025-56383DLL hijacking to rev shellPoC · poc_in_github
zer0t0/CVE-2025-56383-Proof-of-ConceptCVE-2025-56383-Proof-of-ConceptPoC · poc_in_github

affected products (4)

Products and version ranges known to be affected.

Open Source Notepad++ <8.8.4all versionscert_bundDE
Open Source Notepad++< 8.8.4cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
Don Ho Notepad++≤ 8.8.3fstec_bduRU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2148Notepad++: Schwachstelle ermöglicht CodeausführungDeutsch2025-09-28csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Notepad++ ausnutzen, um beliebigen Programmcode auszuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2025-09-26modified 2026-06-17

references (15)

External citations — patches, advisories, analysis.

scry

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