ZDI-CAN-24986: 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-CAN-24986?
The severity of ZDI-CAN-24986 is rated at 7.8 on the CVSS scale, indicating a high-risk vulnerability.
How do I fix ZDI-CAN-24986?
To fix ZDI-CAN-24986, ensure that you update to the latest version of WinZip that addresses this vulnerability.
What kind of attacks does ZDI-CAN-24986 enable?
ZDI-CAN-24986 enables remote attackers to execute arbitrary code by exploiting user interaction through malicious pages or files.
Is user interaction required to exploit ZDI-CAN-24986?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file.
Which software is affected by ZDI-CAN-24986?
The affected software for ZDI-CAN-24986 is WinZip.