Local protected-process termination via unguarded driver IOCTL
Published Jun 26, 2026 · Updated Jun 26, 2026
Denial of service in Safetica Client for Windows 10.5.75.0 and earlier and 11.11.4.0 and earlier allows local users to terminate protected processes. ProcessMonitorDriver.sys accepts a caller-supplied PID through IOCTL 0xB822200C and performs privileged process termination without validating the caller's privileges. Local access is required; repeated requests can stop Safetica or antivirus processes, blinding endpoint monitoring and interrupting service.
Summary
What happened
Denial of service in Safetica Client for Windows 10.5.75.0 and earlier and 11.11.4.0 and earlier allows local users to terminate protected processes. ProcessMonitorDriver.sys accepts a caller-supplied PID through IOCTL 0xB822200C and performs privileged process termination without validating the caller's privileges. Local access is required; repeated requests can stop Safetica or antivirus processes, blinding endpoint monitoring and interrupting service.
The record
- CVE
- CVE-2026-0828
- Published
- Jun 26, 2026
- Updated
- Jun 26, 2026
- Vendor
- Safetica
- Product
- Safetica Client
- Classifications
- CWE-269, T1562.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 26, 2026CVE publishedPublication date reported by the CVE source.
- Jun 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.5.75.0 <=10.5.75.0
- Affected versionversion=11.11.4.0 <=11.11.4.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- KillChainfunctional · demonstrated
- KOSEC ProcessMonitorDriver proof of conceptproof of concept · demonstrated
- STProcessMonitorBYOVDproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
Technologies
Your stack
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Your stack
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