CVE-2025-52915

Service interruption via insufficient IOCTL caller validation

Published Sep 9, 2025 · Updated Sep 10, 2025

Improper privilege management in K7 Ultimate Security allows local administrators to terminate protected processes through crafted IOCTL requests. The K7RKScan.sys IOCTL handler accepts termination requests without adequately validating the caller before performing the operation in kernel space. Administrative privileges are required, and successful exploitation interrupts protected third-party services or applications.

CVSS severity7.2
High
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in K7 Ultimate Security allows local administrators to terminate protected processes through crafted IOCTL requests. The K7RKScan.sys IOCTL handler accepts termination requests without adequately validating the caller before performing the operation in kernel space. Administrative privileges are required, and successful exploitation interrupts protected third-party services or applications.

The record

CVE
CVE-2025-52915
Published
Sep 9, 2025
Updated
Sep 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, T1489
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1489Service Stop

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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