Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Winzip | Winzip | >= 18.0, < 18.0.16371 |
Related Weaknesses (CWE)
References
- https://www.zerodayinitiative.com/advisories/ZDI-25-047/Third Party Advisory
FAQ
What is CVE-2025-1240?
CVE-2025-1240 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 interacti...
How severe is CVE-2025-1240?
CVE-2025-1240 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-1240?
Check the references section above for vendor advisories and patch information. Affected products include: Winzip Winzip.