EUVD-2026-53579
GHSA-mw2w-74q7-6fc4
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/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 kernel driver attack requires only a low-privilege session; no scope change beyond the vulnerable system; full CIA impact upon successful escalation.
Primary rating from Vendor (NI).
CVSS VectorVendor: NI
Lifecycle Timeline
2DescriptionCVE.org
There is a local privilege escalation vulnerability recently discovered in the NI-PAL kernel driver. This may allow a local, authenticated user to escalate privileges and execute arbitrary code. This vulnerability affects NI-PAL 26.3.1 and prior versions running on Microsoft Windows.
AnalysisAI
Local privilege escalation in the NI-PAL kernel driver allows a low-privileged authenticated Windows user to escalate to SYSTEM-level and execute arbitrary code, as confirmed by the NI vendor advisory. Affected deployments include NI-PAL versions 26.3.1 and all prior releases running exclusively on Microsoft Windows. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privileged local user session on a Windows host where NI-PAL 26.3.1 or an earlier version is installed and the kernel driver is loaded - the CVSS 4.0 vector PR:L confirms low-privileged authentication is sufficient and no user interaction is needed (UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.5 is grounded in a local attack vector (AV:L), low complexity (AC:L), no attack requirements (AT:N), low privilege entry (PR:L), no user interaction (UI:N), and full CIA impact on the vulnerable system (VC:H/VI:H/VA:H) with no scope change to downstream systems (SC:N/SI:N/SA:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the NI security advisory at https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/local-privilege-escalation-in-ni-pal.html to obtain the patched release - an exact fixed version number is not independently confirmed from the available data, so the advisory is the authoritative source for upgrade instructions. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Windows deployments of NI-PAL versions 26.3.1 and earlier; categorize systems by user population and access level to prioritize mitigation efforts. …
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Local denial of service in NI's NI-PAL kernel driver (versions 26.3.0 and prior on Windows and Linux) allows an authenti
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