ZDI-25-047: 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.
Other sources
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2025-1240.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-047?
The vulnerability ZDI-25-047 has a CVSS rating of 7.8, indicating high severity.
How do I fix ZDI-25-047?
Fixing the vulnerability ZDI-25-047 involves updating WinZip to the latest version released by the vendor.
What type of attacks can exploit ZDI-25-047?
The vulnerability ZDI-25-047 allows remote attackers to execute arbitrary code by convincing the user to visit a malicious page or open a harmful file.
Is user interaction required to exploit ZDI-25-047?
Yes, user interaction is required for exploiting ZDI-25-047, as the target must engage with a malicious file or website.
What software is affected by ZDI-25-047?
ZDI-25-047 specifically affects installations of WinZip.