CVE-2025-52939

Potential heap-buffer overflow vulnerability in NotepadNext

Description

Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C. This issue affects NotepadNext: through v0.11.

Category

9.4
CVSS
Severity: Critical
CVSS 4.0 •
EPSS 0.01%
Third-Party Advisory github.com
Affected: dail8859 NotepadNext
Published at:
Updated at:

References

Link Tags
https://github.com/dail8859/NotepadNext/pull/757/files third party advisory patch
https://github.com/dail8859/NotepadNext/commit/3e928d91b8fc8bb5c77801ee8652f41e98d12571 patch

Frequently Asked Questions

What is the severity of CVE-2025-52939?
CVE-2025-52939 has been scored as a critical severity vulnerability.
How to fix CVE-2025-52939?
To fix CVE-2025-52939, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-52939 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-52939 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-52939?
CVE-2025-52939 affects dail8859 NotepadNext.
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