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7-Zip ZS

by Igor Pavlov, Tino Reichardt, Sergey Bresterv26.02-v1.5.7-R2

Last updated

File archiver with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard

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Install with winget

$ winget install --id mcmilk.7zip-zstd --exact --version 26.02-v1.5.7-R2

Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.

Silent install command for 7-Zip ZS

7-Zip ZS uses EXE. The silent install switches are /S.

One-line silent install (x64, machine scope)
7z26.02-zstd-x64.exe /S

See the full silent install reference for 7-Zip ZS →

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Installers · v26.02-v1.5.7-R2

ArchitectureTypeScopeInstallDownload
x86EXEmachineDirect
x64EXEmachineDirect
arm64EXEmachineDirect

Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.

Security

22 known CVEs via NVD

  • low3.3Patched in wingetCVE-2026-58052affects <=26.02Jun 28, 2026

    7-Zip for Windows through 26.02 fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its guard that suppresses an archive-supplied Zone.Identifier stream matches the exact name 'Zone.Identifier' while a RAR5 STM record named ':Zone.Identifier:$DA...

  • medium6.5Patched in wingetCVE-2026-48112affects before 26.01Jun 5, 2026

    7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain a heap out-of-bounds read in 7-Zip Ar handler BSD SYMDEF parser. A 4-byte heap out-of-bounds read exists in the Unix ar archive parser in 7-Zip. When parsing a BSD-style __.SYMDEF symbol...

    Patch
  • medium4.3Patched in wingetCVE-2026-48111affects before 26.01Jun 5, 2026

    7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an off-by-one out-of-bounds read vulnerability in the ParseDepedencyExpression function of the UEFI firmware image parser(CPP/7zip/Archive/UefiHandler.cpp). The function validates an atta...

    Patch
  • medium4.2Patched in wingetCVE-2026-48104affects before 26.01Jun 5, 2026

    7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain an uninitialized heap read in the SquashFS archive handler caused by a sparsely populated index array. In the SquashFS handler, _blockToNode is allocated with capacity for every metadata...

    Patch
  • medium4.3Patched in wingetCVE-2026-48103affects before 26.01Jun 5, 2026

    7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain an off-by-one heap out-of-bounds read in the WIM (Windows Imaging) archive handler's security descriptor lookup. In CHandler::GetSecurity (CPP/7zip/Archive/Wim/WimHandler.cpp), the per-im...

    Patch
  • low3.1Patched in wingetCVE-2026-48102affects before 26.01Jun 5, 2026

    7-Zip is a file archiver with a high compression ratio. Versions 9.11 through 26.00 contain a heap out-of-bounds read of up to 3 bytes in the UDF disc image handler's File Identifier Descriptor parser. In CFileId::Parse (CPP/7zip/Archive/Udf/UdfIn.cpp), after validating size < 3...

    Patch
  • medium6.5Patched in wingetCVE-2026-48101affects before 26.01Jun 5, 2026

    7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an An uninitialized memory disclosure vulnerability in the UEFI capsule (.scap) parser in 7-Zip. The OpenCapsule function allocates a heap buffer of attacker-declared CapsuleImageSize (up...

    Patch
  • high8.8Patched in wingetCVE-2026-48095affects before 26.01Jun 5, 2026

    7-Zip is a file archiver with a high compression ratio. Versions 26.00 and prior contain a heap buffer overflow vulnerability caused by an under-allocation in the NTFS compressed stream buffer (GetCuSize shift UB), potentially allowing attackers to cause arbitrary code execution...

Showing 8 of 22. Source: NVD, updated 1h ago. Patch status is best-effort: NVD's fix version is compared against the latest version in winget, but the two version formats don't always align. Confirm with the vendor advisory before treating any specific build as safe.

See a CVE that affects your fleet? Push the patched version to Intune in one click with Pckgr - automated patching is the only way to keep up.

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More from Igor Pavlov, Tino Reichardt, Sergey Brester or browse 7-zip, 7z, 7zip.

Frequently asked questions

How do I install 7-Zip ZS on Windows?
Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id mcmilk.7zip-zstd --exact --version 26.02-v1.5.7-R2. winget downloads the installer from Igor Pavlov, Tino Reichardt, Sergey Brester and runs it. Requires Windows 10 (1809+) or Windows 11.
How do I install 7-Zip ZS silently for unattended deployment?
Add --silent and accept the agreements upfront: winget install --id mcmilk.7zip-zstd --exact 26.02-v1.5.7-R2 --silent --accept-package-agreements --accept-source-agreements. This is the variant Intune, Configuration Manager, and other deployment tools should use.
What are the silent install switches for 7-Zip ZS?
7-Zip ZS uses EXE. Run the downloaded installer with: 7z26.02-zstd-x64.exe /S. The silent switches are /S.
How do I uninstall 7-Zip ZS via winget?
Run: winget uninstall --id mcmilk.7zip-zstd --exact. Add --silent for unattended uninstalls. winget will use the registered uninstaller from 7-Zip ZS's Apps & Features entry.
Is 7-Zip ZS free?
7-Zip ZS is distributed under GNU LGPL v2.1. Refer to the publisher (https://mcmilk.de/projects/7-Zip-zstd/) for the full license terms - Wingetly itself does not charge for installation.
Does 7-Zip ZS work on Windows 10?
Yes, as long as your Windows 10 build supports winget (1809 or newer). winget ships with App Installer on Windows 10/11 and pulls 7-Zip ZS directly from the publisher.
How do I keep 7-Zip ZS up to date?
Run winget upgrade --id mcmilk.7zip-zstd --exact, or winget upgrade --all to update everything winget tracks. We index 10 versions of 7-Zip ZS from microsoft/winget-pkgs.

Recent versions

  • 26.02-v1.5.7-R2latest
  • 25.01 ZS v1.5.7 R4
  • 25.01 ZS v1.5.7 R2
  • 24.09 ZS v1.5.7 R1
  • 24.09 ZS v1.5.6 R1
  • 22.01 ZS v1.5.5 R3
  • 22.01 ZS v1.5.5 R2
  • 22.01 ZS v1.5.4 R4
  • 22.01 ZS v1.5.4 R3
  • 22.01 ZS v1.5.4 R2