Local kernel-pool over-read via unchecked IOCTL length
Published Jul 22, 2026 · Updated Jul 22, 2026
Out-of-bounds read in Unistal Systems Protegent 360 2.0.0.4 allows local users to over-read kernel pool memory via a driver IOCTL. The pgsecdl.sys dispatch function sub_186f4 checks only that InputBufferLength is nonzero, then sub_18618 trusts an attacker-supplied count and copies 2,048 bytes past a 12-byte allocation into a rule entry. Any local user able to open the FILE_ANY_ACCESS device can trigger the read; the copied data remains in kernel space, while a read crossing an unmapped page crashes Windows.
Summary
What happened
Out-of-bounds read in Unistal Systems Protegent 360 2.0.0.4 allows local users to over-read kernel pool memory via a driver IOCTL. The pgsecdl.sys dispatch function sub_186f4 checks only that InputBufferLength is nonzero, then sub_18618 trusts an attacker-supplied count and copies 2,048 bytes past a 12-byte allocation into a rule entry. Any local user able to open the FILE_ANY_ACCESS device can trigger the read; the copied data remains in kernel space, while a read crossing an unmapped page crashes Windows.
The record
- CVE
- CVE-2026-38766
- Published
- Jul 22, 2026
- Updated
- Jul 22, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-782, CWE-269, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 22, 2026CVE publishedPublication date reported by the CVE source.
- Jul 22, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- DreadSec malformed IOCTL proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo