How severe is CVE-2025-67826?

CVE-2025-67826 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-67826 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67826?

CVE-2025-67826 affects K7computing K7 Ultimate Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-67826?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-67826 have an EU (EUVD) identifier?

Yes. CVE-2025-67826 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204714.

When was CVE-2025-67826 published?

CVE-2025-67826 was published on 2025-12-22 and last updated on 2026-06-17.

CVE-2025-67826

CVE-2025-67826 is a high-severity vulnerability in K7computing K7 Ultimate Security with a CVSS 3.x base score of 7.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204714
Weakness: CWE-269
Affected product: K7computing K7 Ultimate Security
Published: 2025-12-22
Last modified: 2026-06-17

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.

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.
How severe is CVE-2025-67826?: CVE-2025-67826 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-67826 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67826?: CVE-2025-67826 affects K7computing K7 Ultimate Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-67826?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-67826 have an EU (EUVD) identifier?: Yes. CVE-2025-67826 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204714.
When was CVE-2025-67826 published?: CVE-2025-67826 was published on 2025-12-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:k7computing:k7_ultimate_security:17.0.2045:*:*:*:*:*:*:*

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