CVE-2024-20696 Windows libarchive Remote Code Execution Vulnerability

High 7.3 Published Updated

An attacker can execute arbitrary code on Windows systems by exploiting a heap-based buffer overflow in the libarchive component.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2024-20696?

CVE-2024-20696 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1809, published on 9 Jan 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Windows libarchive Remote Code Execution Vulnerability

Weakness: CWE-122

Which versions are affected by CVE-2024-20696?

It affects 9 products.

Linux distribution packages (26)
libarchive SUSE:Enterprise Storage 7.1All versions3.4.2-150200.4.18.1
libarchive SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSSAll versions3.4.2-150200.4.18.1
libarchive SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSAll versions3.4.2-150200.4.18.1
libarchive SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSAll versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSSAll versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Micro 5.3All versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Micro 5.4All versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Micro 5.5All versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Micro 5.5All versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Module for Basesystem 15 SP5All versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Module for Development Tools 15 SP5All versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Server 12 SP5All versions3.3.3-32.11.1
libarchive SUSE:Linux Enterprise Server 15 SP2-LTSSAll versions3.4.2-150200.4.18.1
libarchive SUSE:Linux Enterprise Server 15 SP3-LTSSAll versions3.4.2-150200.4.18.1
libarchive SUSE:Linux Enterprise Server 15 SP4-LTSSAll versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Server for SAP Applications 12 SP5All versions3.3.3-32.11.1
libarchive SUSE:Linux Enterprise Server for SAP Applications 15 SP2All versions3.4.2-150200.4.18.1
libarchive SUSE:Linux Enterprise Server for SAP Applications 15 SP3All versions3.4.2-150200.4.18.1
libarchive SUSE:Linux Enterprise Server for SAP Applications 15 SP4All versions3.5.1-150400.3.15.1
libarchive SUSE:Linux Enterprise Software Development Kit 12 SP5All versions3.3.3-32.11.1
libarchive SUSE:Manager Proxy 4.3All versions3.5.1-150400.3.15.1
libarchive SUSE:Manager Server 4.3All versions3.5.1-150400.3.15.1
libarchive openSUSE:Leap 15.5All versions3.5.1-150400.3.15.1
libarchive openSUSE:Leap Micro 5.3All versions3.5.1-150400.3.15.1
libarchive openSUSE:Leap Micro 5.4All versions3.5.1-150400.3.15.1
libarchive openSUSE:TumbleweedAll versions3.7.6-1.1

Products include Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2, Microsoft Windows 11 22h2, Microsoft Windows 11 23h2 and 3 more.

How do I fix CVE-2024-20696?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-20696 being exploited?

There is no known exploitation of CVE-2024-20696 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Microsoft Windows 10 1809 vulnerabilities

Sources

Also known as ALPINE-CVE-2024-20696, CLSA-2026-1775647149, CLSA-2026-1775689506, DEBIAN-CVE-2024-20696, DSA-5806-1, GHSA-g5xc-jv8h-2232 and 9 more.

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