CVE-2025-68947

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Description

NSecsoft 'NSecKrnl' is a Windows driver that allows a local, authenticated attacker to terminate processes owned by other users, including SYSTEM and Protected Processes by issuing crafted IOCTL requests to the driver.

References

Exploits
More

https://securityaffairs.com/187869/security/reynolds-ransomware-uses-byovd-to-disable-security-before-encryption.html

https://thehackernews.com/2026/02/reynolds-ransomware-embeds-byovd-driver.html

https://hexastrike.com/resources/blog/threat-intelligence/valleyrat-exploiting-byovd-to-kill-endpoint-security/

https://github.com/ANYLNK/NSecSoftBYOVD

https://www.virustotal.com/gui/file/206f27ae820783b7755bca89f83a0fe096dbb510018dd65b63fc80bd20c03261

https://www.cve.org/CVERecord?id=CVE-2025-68947

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-013-01.json

Details

Source: Mitre, NVD

Published: 2026-01-13

Updated: 2026-04-15

Risk Information

CVSS v2

Base Score: 3.8

Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:N/A:C

Severity: Low

CVSS v3

Base Score: 4.7

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

CVSS v4

Base Score: 5.7

Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N