TI-2025-01060 Aliases CVE-2025-1240 GHSA-g42f-c6cx-89cg

Out-of-bounds write in WinZip

MEDIUM 53CWE-787Published 2025-02-11 · Updated 2025-02-12

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.10311 95th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
WinZip Computing	WinZip	28.0 16022	—	No fix listed	CNA

WinZip VendorWinZip Computing Affected 28.0 16022 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:winzip:winzip::::::::	18.0 to before 18.0.16371; 27.0 to before 27.0.16370; 76.0 to before 76.8	Vulnerable	WinZip

cpe:2.3:a:winzip:winzip:*:*:*:*:*:*:*:* Versions 18.0 to before 18.0.16371; 27.0 to before 27.0.16370; 76.0 to before 76.8 Vulnerable ·WinZip

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-1240
2026-10-03 Alias added: GHSA-g42f-c6cx-89cg

References

Advisory 1

ZDI-25-047

TI-2004-00302 Buffer overflow in the UUDeview package, as used in WinZip 6.2 through WinZip 8.1 SR-1… CVSS 2.0HIGH 10.0
TI-2002-00357 Buffer overflow in the ZIP capability for multiple products allows remote attackers to… CVSS 2.0HIGH 7.5
TI-2006-03768 Stack-based buffer overflow in the Sky Software FileView ActiveX control, as used in… CVSS 2.0HIGH 9.3
TI-2004-00203 Multiple stack-based buffer overflows in the get_header function in header.c for LHA… CVSS 2.0HIGH 10.0
TI-2006-05014 The WZFILEVIEW.FileViewCtrl.61 ActiveX control (aka Sky Software "FileView" ActiveX… CVSS 2.0MEDIUM 4.0
TI-2006-06627 Buffer overflow in the WZFILEVIEW.FileViewCtrl.61 ActiveX control (aka Sky Software… CVSS 2.0HIGH 9.3

See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences