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New 7-Zip Vulnerabilities Let Attackers Execute Arbitrary Code and Compromise Systems

Cyber Accord
Cyber Accord
Published May 26, 2026Original Report

Excerpt

A critical heap buffer overflow vulnerability has been disclosed in 7-Zip version 26.00, enabling attackers to achieve arbitrary code execution via a vtable hijack by exploiting a defect in the tool’s NTFS archive handler. Tracked as CVE-2026-48095 and assigned advisory GHSL-2026-140, the flaw resides in the CInStream::GetCuSize() function inside NtfsHandler.cpp. The function computes the NTFS […] The post New 7-Zip Vulnerabilities Let Attackers Execute Arbitrary Code…

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Indicators of Compromise

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1 indicators

TypeIndicatorConfidenceScoreFirst Seen
CVECVE-2026-48095MediumScore 54/100First seen

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