EUVD-2026-56511
GHSA-2q6q-784h-7g8w
Severity by source
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local vector with high privileges and required user interaction; no scope change as subsequent-system impacts are confirmed none by the 4.0 vector.
Primary rating from Vendor (intel).
CVSS VectorVendor: intel
Lifecycle Timeline
1DescriptionCVE.org
Protection mechanism failure for some Intel(R) Neural Compressor software before version v3.6 within Ring 3: User Applications may allow an escalation of privilege. Unprivileged software adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires passive user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
AnalysisAI
Privilege escalation in Intel Neural Compressor software before v3.6 stems from a protection mechanism failure (CWE-693) within the Ring 3 user-application layer. A local attacker operating with high privileges, in conjunction with specific attack requirements and passive user interaction, can exploit this flaw to elevate privileges with high confidentiality, integrity, and availability impact on the vulnerable system. Intel has issued advisory INTEL-SA-01454 and released v3.6 as the remediated version; no public exploit code or active exploitation has been identified at time of analysis.
Technical ContextAI
Intel Neural Compressor is a machine learning model optimization library (CPE: cpe:2.3:a:n/a:intel(r)_neural_compressor_software) used for neural network quantization, pruning, and compression. The vulnerability resides in Ring 3, the least-privileged execution ring in the x86 privilege architecture where ordinary user-mode applications run. CWE-693 (Protection Mechanism Failure) indicates the software either fails to apply or incorrectly implements a protection control - such as access control checks, sandboxing, or privilege boundaries - that should prevent unprivileged code paths from reaching privileged operations. The CVSS 4.0 vector's AT:P metric confirms that specific attack requirements (beyond mere access) must be satisfied, consistent with a protection bypass that depends on particular runtime conditions or configurations within the software's execution environment.
RemediationAI
The primary fix is to upgrade Intel Neural Compressor software to version v3.6 or later, as confirmed by Intel advisory INTEL-SA-01454 (https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01454.html). Until patching is feasible, organizations should restrict local system access to the fewest necessary users, applying the principle of least privilege to limit which accounts can execute Neural Compressor workloads. Disabling or isolating Neural Compressor from multi-user or shared-compute environments reduces the exposure window, as the PR:H requirement means the risk is concentrated in environments where multiple highly privileged users share a single host. No specific workaround is documented in the available references beyond upgrading.
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Same weakness CWE-693 – Protection Mechanism Failure
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today