Vulnerability in Notepad-Plus-Plus
CVE-2026-85995
Notepad++ is a free and open-source source code editor. From 8.9.7 until 8.9.8, the Notepad++ updater and signature verification path can accept a modified GUP.exe file whose embedded certificate metadata remains present even though its Authenticode digest is invalid. An attacker who can replace or plant the updater-related file can cause Notepad++ to launch attacker-modified code when a user triggers the updater path, but the issue does not provide remote code execution by itself. This issue is fixed in version 8.9.8.
Published .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Notepad-Plus-Plus — versions < 8.9.8
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-85995?
- CVE-2026-85995 is a high-severity vulnerability in Notepad-Plus-Plus, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.3/10. Published 2026-09-22.
- How severe is CVE-2026-85995?
- High severity. CVSS v3 base score is 7.3 out of 10.