CVE-2026-14266

A flaw was found in 7-Zip. This vulnerability allows a remote attacker to execute arbitrary code on affected installations. Exploitation requires user interaction, such as opening a specially crafted malicious file or visiting a malicious web page. The flaw occurs during the processing of...

CVE-2026-14266

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page...

EUVD-2026-50420

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page...

CVE-2026-14266

Summary: CVE-2026-14266 affects 7-Zip 26.01 and earlier in the multi-threaded XZ decoder path. A heap-based buffer overflow in MixCoder_Code() occurs when processing crafted XZ data, allowing potential remote code execution and denial of service. Root cause: missing boundary clamp on destLen2 in ...

CVE-2026-14266

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page...

CVE-2026-14266 7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page...

CVE-2026-14266 7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page...

Exploit for CVE-2026-14266

CVE-2026-14266 — 7-Zip XZ Decoder Heap Buffer Overflow Cr...

Exploit for CVE-2026-14266

CVE-2026-14266: 7-Zip XZ Heap Buffer Overflow PoC Generator P...

[SECURITY] [DLA 4690-1] xz-utils security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4690-1 [email protected] https://www.debian.org/lts/security/ Chris Lamb July 20, 2026 https://wiki.debian.org/LTS -...

Debian dla-4690 : liblzma-dev - security update

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4690 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4690-1 [email protected] https://www.debian.org/lts/security/...

New 7-Zip Vulnerability Could Let Crafted XZ Archives Run Code During Extraction

Opening a crafted XZ archive in 7-Zip could let an attacker run code on the machine. The flaw, CVE-2026-14266, is a heap-based buffer overflow in how the archiver processes XZ chunked data, and Trend Micro's Zero Day Initiative ZDI detailed it on July 15. A fix shipped on June 25 in 7-Zip 26.02...

Astra Linux – Vulnerability in xz-utils

XZ Utils provides a general-purpose data-compression library along with command-line tools. Prior to version 5.8.3, if the lzmaindexdecoder function was used to decode an Index that contained no Records, the resulting lzmaindex would be in a state where subsequent calls to lzmaindex.Append would...

PT-2026-60346

Name of the Vulnerable Software and Affected Versions 7-Zip versions prior to 26.02 Description A heap-based buffer overflow exists in the XZ decoder component when processing specially crafted XZ chunked data. The issue occurs within the MixCoder Code function in the XzDec.c file, where the...

Exploit for Embedded Malicious Code in Tukaani Xz

XZ Backdoor Labs CVE-2024-3094 Safe, hands-on labs for...

EulerOS Virtualization 2.13.0 : xz (EulerOS-SA-2026-2422)

According to the versions of the xz packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was us...

EulerOS 2.0 SP13 : xz (EulerOS-SA-2026-2362)

According to the versions of the xz packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an...

EulerOS 2.0 SP13 : xz (EulerOS-SA-2026-2319)

According to the versions of the xz packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : XZ Utils vulnerability (USN-8362-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8362-1 advisory. It was discovered that XZ Utils did not properly manage memory when attempting to append data ...

USN-8362-1: XZ Utils vulnerability

It was discovered that XZ Utils did not properly manage memory when attempting to append data to a decoded index that contained no records. An attacker could possibly use this issue to cause XZ Utils to crash, resulting in a denial of service, or execute arbitrary code...