Hacking, PenTest, and Cybersecurity Tools for Your Security Arsenal!

Loading CVE intelligence

Loading vulnerability catalog

Kitploit is a directory of hacking, cybersecurity, and pentesting tools. Discover the latest project updates to find vulnerabilities, analyze systems, automate testing, and strengthen your security.

Tool Directory

CVE-2024-11477

HighPublished

7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability

Published: Nov 22, 2024
Updated: Feb 15, 2025
Assigning CNA: zdi
Evidence observed: Aug 8, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS probability estimate

22.6%

Moderate · next 30 days

Percentile: 97.7%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the implementation of Zstandard decompression. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24346.

Sources

cve-2024-11477-writeupResearch
CVE-2024-11477 7Zip Code Execution Writeup and Analysis

Responsible use

Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.