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CVE-2025-1240

35
FAUCET Score

CVE-2025-1240 is an out-of-bounds write vulnerability in WinZip's 7Z file parsing, allowing remote code execution. It affects WinZip installations and stems from insufficient validation of user-supplied data, leading to a buffer overflow. With a CVSS score of 8.8 (High), exploitation requires user interaction, such as opening a malicious file, but can result in complete compromise of the affected system. Currently, there is no public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 18.0, < 18.0.16371CPE matchmatch criteria
cpe:2.3:a:winzip:winzip:*:*:*:*:*:*:*:*
>= 27.0, < 27.0.16370CPE matchmatch criteria
cpe:2.3:a:winzip:winzip:*:*:*:*:*:*:*:*
>= 76.0, < 76.8CPE matchmatch criteria
cpe:2.3:a:winzip:winzip:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
10.39%
Probability of exploitation in next 30 days
EPSS Percentile
95.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1040 is in the 95th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

zerodayinitiative.com / advisories/ZDI-25-047
Third Party Advisory