CVE-2025-1240 in the critical feed json
WinZip 7Z File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
published 2025-02-11 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-2096
- cvss
- 7.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 10.3%
- EPSS 10.3% chance of exploitation in 30 days, percentile 95%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- winzip winzip 18.0.16371, 27.0.16370, 76.8
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 20 mo ago
Exploit prediction
10.31% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- WinZip Computing WinZip
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
zerodayinitiative.com
/advisories/ZDI-25-047/
third-party-advisory
Sources
- CVE List CVE-2025-1240
- NVD CVE-2025-1240
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