Missing authorization in K7 Security Anti-Malware
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
A vulnerability in the K7RKScan.sys driver, part of the K7 Security Anti-Malware suite, allows a local low-privilege user to send crafted IOCTL requests to terminate a wide range of processes running with administrative or system-level privileges, with the exception of those inherently protected by the operating system. This flaw stems from missing access control in the driver's IOCTL handler, enabling unprivileged users to perform privileged actions in kernel space. Successful exploitation can lead to denial of service by disrupting critical services or privileged applications.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| K7 Security | K7 Security Anti-Malware | before 23.0.0.10 | 23.0.0.10 | Patch available | CNA |
- K7 Security Anti-Malware VendorK7 Security Affected before 23.0.0.10 Fixed in 23.0.0.10 Patch available CNA
Remediation
- Fix · CNA K7 Security Anti-Malware (K7 Security) Fixed in 23.0.0.10
Timeline
- 2026-10-02 Threatist record created from CVE-2025-1055
- 2026-10-03 Alias added: GHSA-pmf4-2j7f-rq3c
References
Sources
- CVE-2025-1055 · CVE Program
- CVE-2025-1055 · NVD
- FIRST EPSS
- GHSA-pmf4-2j7f-rq3c · GitHub Advisory Database · CC BY 4.0
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