CVE-2026-57233

highpriority · track · 0EPSS 0.005 · 43 %ileDEEU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.51% (43rd) EPSS

CVSS 8.1 · high

Is it mine?

3 products

Check your exposure

Who says so?

2 sources

enisa_euvd · cert_bund

EPSS · scored 2026-10-27

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the WinGup decompress function joins untrusted ZIP entry names to unzipDestTo without canonical containment validation, allowing an entry such as ../mimeTools/mimeTools.dll to overwrite a DLL in a sibling plugin directory and execute attacker-controlled code when Notepad++ next loads that plugin. This issue is fixed in version 8.9.7.

cvss

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

8.1

010

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

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:Hsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:Hsecondary · security-advisories@github.comexploitability 2.8 · impact 5.2

v3.17.4highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22US

affected products (3)

Products and version ranges known to be affected.

Open Source Notepad++ <8.9.7all versionscert_bundDE
Open Source Notepad++< 8.9.7cert_bundDE
notepad-plus-plus notepad-plus-plus≤ < 8.9.7enisa_euvdEU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2312Notepad++: Mehrere SchwachstellenDeutsch2026-07-13csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Notepad++ ausnutzen, um beliebigen Programmcode auszuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.

also known as (1)

Other names and identifiers for this entity.

EUVD-2026-60375 enisa_euvd

sources

Which sources assert this record, and when.

enisa_euvd cert_bund NVD CVE.org MITRE

published 2026-08-17modified 2026-08-18

references (8)

External citations — patches, advisories, analysis.

scry

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