CVE-2024-11477

HIGH EPSS 97.4%

Published Nov 22, 20241y ago · Modified Jun 17, 20261w ago

7.8 CVSS 3.1

High

Published Nov 22, 2024 1y ago

Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score

7.8

Exploitability

1.8

Impact

5.9

Vector string

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

Attack Vector Local

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

97.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-191

Affected Products 1

Vendor	Product	Version	Range
7-zip	7-zip	*	<24.07

References 2

security.netapp.com https://security.netapp.com/advisory/ntap-20250214-0007/
zerodayinitiative.com https://www.zerodayinitiative.com/advisories/ZDI-24-1532/

Third Party AdvisoryVDB Entry

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.