CVE-2026-30007

Received Received - Intake

Use-After-Free in XnSoft NConvert 7.230 via Malicious TIFF

Publication date: 2026-03-23

Last updated on: 2026-03-26

Assigner: MITRE

Description

XnSoft NConvert 7.230 is vulnerable to Use-After-Free via a crafted .tiff file

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-03-23

Last Modified

2026-03-26

Generated

2026-07-06

AI Q&A

2026-03-23

EPSS Evaluated

2026-07-05

NVD

CVE-2026-30007

EUVD

EUVD-2026-14469

Affected Vendors & Products

Vendor	Product	Version / Range
xnview	nconvert	7.230

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

CVE-2026-30007 is a Use-After-Free (UAF) vulnerability in XnSoft NConvert version 7.230. It occurs when the software processes a specially crafted .tiff file, leading to invalid memory access.

This invalid memory access causes the program to crash, as confirmed by debugger logs showing an access violation in the Windows system library during heap memory operations.

Impact Analysis

The vulnerability can cause the NConvert application to become unstable and crash, resulting in a Denial of Service (DoS) condition.

There is no indication that this vulnerability allows remote code execution or privilege escalation, so the impact is limited to application availability.

Compliance Impact

I don't know

Detection Guidance

This vulnerability can be detected by executing the vulnerable XnSoft NConvert 7.230 application with a specially crafted malicious .tiff file and observing for a crash or access violation.

A suggested command to test for the vulnerability is:

nconvert.exe -out tiff id_000002_00

During execution, if the Windows Debugger logs an access violation exception (code c0000005) in the ntdll.dll module within the RtlpFreeHeap function, it indicates the presence of the use-after-free vulnerability.

Mitigation Strategies

I don't know

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