CVE-2026-5525 | BDVDB-2026-326233 Detail

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).

Impact#

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Exploit#

History#

1. Version 12026-04-10Record published in the CVE List.