CVE-2025-1240 Details
Description
WinZip 7Z File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of WinZip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of 7Z files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24986.
A remote code execution vulnerability has been identified in WinZip, specifically in the parsing of 7Z files. This issue arises from inadequate validation of user-supplied data, leading to an out-of-bounds write that can overwrite memory. As a result, attackers can execute arbitrary code on the affected system, with the executed code running in the context of the current process. Exploitation requires user interaction, such as opening a malicious 7Z file.
Users can update to WinZip versions 76.8 or later for subscription licenses, or to version 29.0 or later, 28.0.16371 and later, or 27.0.16370 and later for perpetual licenses.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 12, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-25-047/ | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| winzip winzip | >= 18.0, < 18.0.16371 >= 27.0, < 27.0.16370 >= 76.0, < 76.8 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Aug 18, 2025 | Initial Analysis | [email protected] |
| Feb 11, 2025 | New CVE Received | [email protected] |