The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the…
Priority LOW 37CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-94.
Summary
The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.
Why it matters now
EPSS 0.0184 79th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:notepad\+\+:notepad\+\+:*:*:*:*:*:*:*:* | up to 1.0; up to 1.1; up to 1.2; up to 1.3; up to 1.4; up to 1.5; up to 1.6; up to 1.7; up to 1.8; up to 1.9; up to 2.1; up to 2.2; up to 2.3; up to 2.4; up to 2.5; up to 2.6; up to 2.8; up to 2.9; up to 3.0; up to 3.1; up to 3.2; up to 3.3; up to 3.4; up to 3.5; up to 3.6; up to 3.7; up to 3.8; up to 3.9; up to 4.0; up to 4.0.2; up to 4.1; up to 4.1.1; up to 4.1.2; up to 4.2.1; up to 4.2.2; up to 4.3; up to 4.4; up to 4.5; up to 4.6; up to 4.7; up to 4.7.2 | Vulnerable | Notepad++ |
- cpe:2.3:a:notepad\+\+:notepad\+\+:*:*:*:*:*:*:*:* Versions up to 1.0; up to 1.1; up to 1.2; up to 1.3; up to 1.4; up to 1.5; up to 1.6; up to 1.7; up to 1.8; up to 1.9; up to 2.1; up to 2.2; up to 2.3; up to 2.4; up to 2.5; up to 2.6; up to 2.8; up to 2.9; up to 3.0; up to 3.1; up to 3.2; up to 3.3; up to 3.4; up to 3.5; up to 3.6; up to 3.7; up to 3.8; up to 3.9; up to 4.0; up to 4.0.2; up to 4.1; up to 4.1.1; up to 4.1.2; up to 4.2.1; up to 4.2.2; up to 4.3; up to 4.4; up to 4.5; up to 4.6; up to 4.7; up to 4.7.2 Vulnerable ·Notepad++
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-3436
- 2026-10-03 Alias added: GHSA-4mcf-r6j9-cvfh
References
More Notepad++ vulnerabilities
- TI-2007-02577 Stack-based buffer overflow in LexRuby.cxx (SciLexer.dll) in Scintilla 1.73, as used by… CVSS 2.0HIGH 7.6
Sources
- CVE-2008-3436 · CVE Program
- CVE-2008-3436 · NVD
- FIRST EPSS
- GHSA-4mcf-r6j9-cvfh · GitHub Advisory Database · CC BY 4.0
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