Use-After-Free in File Parser Leading to Arbitrary Code Execution

Publication date: 2026-07-07

Last updated on: 2026-07-07

Assigner: ICS-CERT

Description

The application contains a use-after-free vulnerability that can be exploited to cause memory corruption while parsing specially crafted files. This could allow an attacker to execute arbitrary code in the context of the current process.

CVSS Scores

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Meta Information

Published

2026-07-07

Last Modified

2026-07-07

Generated

2026-07-08

AI Q&A

2026-07-08

EPSS Evaluated

N/A

NVD

CVE-2026-42958

Affected Vendors & Products

Currently, no data is known.

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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

This vulnerability is a use-after-free issue in an application that occurs when parsing specially crafted files. It leads to memory corruption, which can be exploited by an attacker to execute arbitrary code within the context of the current process.

Impact Analysis

The impact of this vulnerability includes the potential for an attacker to execute arbitrary code on your system with the privileges of the affected application. This can lead to unauthorized actions, data compromise, or system instability.

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