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
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Meta Information
Published
2026-03-23
Last Modified
2026-03-26
Generated
2026-06-16
AI Q&A
2026-03-23
EPSS Evaluated
2026-06-14
NVD
CVE-2026-30007
EUVD
EUVD-2026-14469
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
xnview nconvert 7.230
Helpful Resources
Exploitability
CWE
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KEV
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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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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

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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

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