7-Zip Mark-of-the-Web Bypass Vulnerability. This vulnerability allows remote attackers to bypass the Mark-of-the-Web protection mechanism on affected installations of 7-Zip. 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 handling of archived files. When extracting files from a crafted archive that bears the Mark-of-the-Web, 7-Zip does not propagate the Mark-of-the-Web to the extracted files. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current user. Was ZDI-CAN-25456.
https://thehackernews.com/2025/02/xe-hacker-group-exploits-veracore-zero.html
https://isc.sans.edu/diary/rss/31668
https://www.securityweek.com/russian-hackers-exploited-7-zip-zero-day-against-ukraine/
https://therecord.media/smokeloader-malware-ukraine-russia
https://thehackernews.com/2025/02/russian-cybercrime-groups-exploiting-7.html
Published: 2025-01-25
Updated: 2025-02-12
Named Vulnerability: 7-Zip’s Zero-Day MoTW BypassKnown Exploited Vulnerability (KEV)
Base Score: 6.2
Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C
Severity: Medium
Base Score: 7
Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.36198