Local privilege escalation via unbounded driver memory operations
Published Mar 3, 2026 · Updated Mar 3, 2026
Memory-bounds failure in Portwell Engineering Toolkits 4.8.2 and earlier allows local users to read and write arbitrary memory through its driver. The PET driver fails to confine memory operations to their intended buffer bounds, but published records do not identify the affected interface. A locally authenticated user can use the arbitrary read/write primitive for privilege escalation or service interruption; the failure mode is undisclosed.
Summary
What happened
Memory-bounds failure in Portwell Engineering Toolkits 4.8.2 and earlier allows local users to read and write arbitrary memory through its driver. The PET driver fails to confine memory operations to their intended buffer bounds, but published records do not identify the affected interface. A locally authenticated user can use the arbitrary read/write primitive for privilege escalation or service interruption; the failure mode is undisclosed.
The record
- CVE
- CVE-2026-3437
- Published
- Mar 3, 2026
- Updated
- Mar 3, 2026
- Vendor
- Portwell, Inc.
- Product
- Portwell Engineering Toolkits
- Classifications
- CWE-119, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 3, 2026CVE publishedPublication date reported by the CVE source.
- Mar 3, 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=4.8.2
What conditions does exploitation require?
What is affected?
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
- tihomirocrew/cve-2026-3437proof of concept · unverified
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Technologies
Your stack
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Your stack
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