CVE-2025-67826

HIGH
Published Dec 22, 2025 Modified Jan 2, 2026 CWE-269

Description

An issue was discovered in K7 Ultimate Security 17.0.2045. A Local Privilege Escalation (LPE) vulnerability in the K7 Ultimate Security antivirus can be exploited by a local unprivileged user on default installations of the product. Insecure access to a named pipe allows unprivileged users to edit any registry key, leading to a full compromise as SYSTEM.

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CVSS v3.1 Score

7.7
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-269 CWE-269

Affected Products

Vendor Product
k7computing k7_ultimate_security

References

Frequently Asked Questions

What is CVE-2025-67826? +
An issue was discovered in K7 Ultimate Security 17.0.2045. A Local Privilege Escalation (LPE) vulnerability in the K7 Ultimate Security antivirus can be exploited by a local unprivileged user on default installations of the product. Insecure access to a named pipe allows unprivileged users to edit any registry key, leading to a full compromise as SYSTEM. It has a CVSS v3.1 base score of 7.7 (HIGH).
How severe is CVE-2025-67826? +
CVE-2025-67826 has a CVSS v3.1 score of 7.7 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-67826? +
CVE-2025-67826 affects products from k7computing, specifically: k7_ultimate_security. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-67826? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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