CVE-2024-3094

criticalpriority · act · 82EPSS 0.909 · 100 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

85 exploits · PoC

Likely / severe?

90.9% (100th) EPSS

CVSS 10 · critical

Is it mine?

24 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source code, which is then used to modify specific functions in the liblzma code. This results in a modified liblzma library that can be used by any software linked against this library, intercepting and modifying the data interaction with this library.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 6

v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 3.9 · impact 6

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-506USCWE-506US

exploits (85)

Public proof-of-concept and weaponised exploit code.

0xBlackash/CVE-2024-3094CVE-2024-3094PoC · poc_in_github
0xlane/xz-cve-2024-3094XZ Backdoor Extract(Test on Ubuntu 23.10)PoC · poc_in_github
24Owais/threat-intel-cve-2024-3094Threat intelligence report analyzing the xz-utils backdoor vulnerability (CVE-2024-3094)PoC · poc_in_github
AndreaCicca/Sicurezza-Informatica-PresentazionePresentazione per il corsi di sicurezza Informatica sulla vulnerabilità CVE-2024-3094PoC · poc_in_github
Ava-Vispilio/CVE-2024-3094Ava-Vispilio/CVE-2024-3094PoC · poc_in_github
BOSE122/CVE-2024-3094BOSE122/CVE-2024-3094PoC · poc_in_github

affected products (24)

Products and version ranges known to be affected.

Debian Linux unstableall versionscert_bundDEcpe:/o:debian:debian_linux:unstable
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source Arch Linuxall versionscert_bundDEcpe:/o:archlinux:archlinux:-
Open Source OpenSSHall versionscert_bundDEcpe:/a:openbsd:openssh:-
Open Source xz 5.6.0all versionscert_bundDEcpe:/a:tukaani:xz:5.6.0
Open Source xz 5.6.1all versionscert_bundDEcpe:/a:tukaani:xz:5.6.1
SUSE Linux MicroOSall versionscert_bundDEcpe:/o:suse:suse_linux:microos
SUSE Linux Tumbleweedall versionscert_bundDEcpe:/o:suse:suse_linux:tumbleweed
Fedora Project Fedora≤ 40fstec_bduRU
Fedora Project Fedora≤ 41fstec_bduRU
Gentoo Foundation Inc. Gentoo Linux≤ .fstec_bduRU
Manjaro GmbH & Co Manjaroall versionsfstec_bduRU
Novell Inc. openSUSE Tumbleweedall versionsfstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.11fstec_bduRU
АО «НТЦ ИТ РОСА» ROSA Virtualization≤ 2.1fstec_bduRU
АО «НТЦ ИТ РОСА» РОСА Кобальт≤ 7.9fstec_bduRU
АО «НТЦ ИТ РОСА» РОСА ХРОМ≤ 12.4fstec_bduRU
ООО «Юбитех» UBLinux≤ 2405fstec_bduRU
Сообщество свободного программного обеспечения Arch Linuxall versionsfstec_bduRU

showing 20 of 24

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0762xz: Schwachstelle ermöglicht Ausführen von beliebigem ProgrammcodeDeutsch2024-04-01csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Debian Linux, SUSE Linux, Arch Linux, Fedora Linux, xz und Gentoo Linux ausnutzen, um beliebigen Programmcode auszuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2024-03-29modified 2026-06-17

references (118)

External citations — patches, advisories, analysis.

scry

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