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...

The vulnerability of the MixCoder_Code() function in the XZ Decoder component of the 7-Zip archive processor allows a hacker to execute arbitrary code.

The vulnerability of the MixCoderCode function in the XZ Decoder component of the 7-Zip archive processor is related to buffer overflow in dynamic memory. Exploiting this vulnerability could allow an attacker to execute arbitrary code...

Exploit for CVE-2026-14266

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

7zip-26.02-1.1 on GA media (moderate)

7zip-26.02-1.1 on GA media Announcement ID: openSUSE-SU-2026:11319-1 Rating: moderate Cross-References: CVE-2026-14266 Affected Products: openSUSE Tumbleweed An update that solves one vulnerability can now be installed. Description: These are all security issues fixed in the 7zip-26.02-1.1 packag...

PT-2026-63449

These are all security issues fixed in the 7zip-26.02-1.1 package on the GA media of openSUSE Tumbleweed...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-14266

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on...

7-Zip < 26.01 NTFS Heap Buffer Overflow (GHSL-2026-140)

The version of 7-Zip installed on the remote Windows host is prior to 26.01. It is, therefore, affected by a vulnerability: - A heap buffer overflow vulnerability exists in the NTFS archive handler. The CInStream::GetCuSize function computes the compression-unit buffer size using a 32-bit shift...

KLA91162 ACE vulnerability in 7-Zip

A remote code execution vulnerability was found in 7-Zip. Malicious users can exploit this vulnerability to execute arbitrary code, cause denial of service, bypass security restrictions. Original advisories ZDI-26-444 Exploitation Public exploits exist for this vulnerability. CVE list...

[SECURITY] [DLA 4681-1] p7zip security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4681-1 [email protected] https://www.debian.org/lts/security/ Sylvain Beucler July 13, 2026 https://wiki.debian.org/LTS -...

PYSEC-2026-2973 py7zr: O(n^2) algorithmic complexity DoS in PackInfo._read()

Summary PackInfo.read uses an On^2 cumulative sum pattern where numstreams is read directly from the archive header. A crafted .7z archive with a large numstreams value causes excessive CPU consumption during SevenZipFile.init — no extraction is needed. A 50 KB archive takes 7 seconds of CPU time...

PYSEC-2026-2974 py7zr: Arbitrary File Write Vulnerability

Summary There exists an arbitrary file write vulnerability in py7zr 1.1.0, latest, which allows symbolic links to be recreated outside the destination directory via crafted malicious symbolic link chains. When using extractall to extract an archive, the library restores these symbolic links,...

Linux Distros Unpatched Vulnerability : CVE-2026-58052

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 7-Zip for Windows through 26.01 fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its guard that suppresses an...