Local denial of service via use-after-free
Published May 12, 2026 · Updated May 12, 2026
Use-after-free in Intel Ethernet 800 Series Linux kernel drivers before 2.3.14 allows local users to interrupt kernel service. Intel identifies only a stale-object access in Ring 0 and does not disclose the affected function, object lifetime, or trigger sequence. A low-privileged authenticated user needs local access and additional attack requirements; Intel does not state whether the resulting interruption is a crash or hang.
Summary
What happened
Use-after-free in Intel Ethernet 800 Series Linux kernel drivers before 2.3.14 allows local users to interrupt kernel service. Intel identifies only a stale-object access in Ring 0 and does not disclose the affected function, object lifetime, or trigger sequence. A low-privileged authenticated user needs local access and additional attack requirements; Intel does not state whether the resulting interruption is a crash or hang.
The record
- CVE
- CVE-2025-27723
- Published
- May 12, 2026
- Updated
- May 12, 2026
- Vendor
- Topcon Positioning Systems, Inc.
- Product
- Intel Ethernet 800 Series
- Classifications
- CWE-416, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 12, 2026CVE publishedPublication date reported by the CVE source.
- May 12, 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?
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- Affected versionversion=before version 2.3.14
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
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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