Vulnerability in Notepad++

CVE-2026-3008

Successful exploitation of the string injection vulnerability could allow an attacker to obtain memory address information or crash the application.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-3008: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-3008?
CVE-2026-3008 is a medium-severity vulnerability in Notepad++, classified under Use of Externally-Controlled Format String. CVSS score: 6.6/10. Published 2026-04-27.
How severe is CVE-2026-3008?
Medium severity. CVSS v3 base score is 6.6 out of 10.
Is CVE-2026-3008 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.