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CVE-2025-52938

Potential heap-based buffer over-read vulnerability in NotepadNext

MEDIUM
5.1
CVSS Score
Published: June 23, 2025 at 09:26 AM UTC
Updated: June 17, 2026 at 09:37 AM UTC
1 product affected across 1 vendorNotepadNext

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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Out-of-bounds Read vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files lparser.C. This issue affects NotepadNext: through v0.11. The singlevar() in lparser.c lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: [email protected]
https://github.com/dail8859/NotepadNext/commit/66b8a97d9fdfd2257996875716f39c18d84e004f
PatchThird Party Advisory
Source: [email protected]
https://github.com/dail8859/NotepadNext/pull/756

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.1MEDIUMGovTech CSG
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-125

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