Buffer overflow in Notepad-plus-plus Notepad\+\+
CVE-2023-40036
Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to global buffer read overflow in `CharDistributionAnalysis::HandleOneChar`. The exploitability of this issue is not clear. Potentially, it may…
Vulnerability class: Buffer Overflow
EPSS: 0.004 (34.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Notepad-plus-plus Notepad\+\+
- Notepad-plus-plus — versions <= 8.5.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-40036?
- CVE-2023-40036 is a medium-severity vulnerability in Notepad-plus-plus Notepad\+\+, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2023-08-25.
- How severe is CVE-2023-40036?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-40036 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.