Notepad++: Mehrere Schwachstellen
WID-SEC-2026-1679 · first 27.05.2026 · updated 29.06.2026 · CVSS 7,8
What it is about
Notepad++ ist ein Open-Source-Editor, der viele Programmiersprachen unter Microsoft Windows unterstützt. Ein Angreifer kann mehrere Schwachstellen in Notepad++ ausnutzen, um einen Denial of Service Angriff durchzuführen, und um beliebigen Programmcode auszuführen.
Under what conditions?
The BSI does not name any particular preconditions.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Denial of Service Angriff durchzuführen
- beliebigen Programmcode auszuführen
Am I affected?
Affected according to the BSI:
- Open Source Notepad++ <8.9.6.1
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Open Source Notepad++ 8.9.6.1
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Notepad++ v8.9.6.1 release vom 2026-05-26 notepad-plus-plus.org
- GitHub Security Advisory GHSA-R39G-3MCW-XCG2 vom 2026-05-26 github.com
- GitHub Security Advisory GHSA-7HM3-WP5Q-CCV9 vom 2026-05-26 github.com
CVE: CVE-2026-48770, CVE-2026-48778
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.