Dashboard / CVE-2026-5525

CVE-2026-5525

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-04-10 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: High

Description

A stack-based buffer overflow vulnerability exists in Notepad++ version 8.9.3 in the file drop handler component. When a user drags and drops a directory path of exactly 259 characters without a trailing backslash, the application appends a backslash and null terminator without proper bounds checking, resulting in a stack buffer overflow and application crash (STATUS_STACK_BUFFER_OVERRUN).

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
notepad-plus-plus notepad\+\+ 8.9.3

References & Advisories (3)

Bug Bounty Relevance

41 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.17%
Raw Score 0.001660
Percentile 5.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00166
2026-10-28
0.00166

Intelligence Sources

nvd ref →

External Links