Security readout for executives and security teams
Plain-English summary
CVE-2021-38304 is a local escalation-of-privilege issue in National Instruments NI-PAL driver versions 20.0.0 and earlier. The source says a privileged local user may be able to gain higher privileges because of improper input validation.
Executive priority
Do not treat this as internet-wide emergency based on the supplied evidence. Prioritize it for NI-dependent environments, especially shared engineering or operational systems where local privileged access is common.
Technical view
The CVE describes improper input validation in NI-PAL. Impact requires local access and an already privileged user, with potential escalation of privilege. The supplied sources do not provide CVSS, CWE, exploit details, or a specific fixed version.
Likely exposure
Exposure is likely limited to endpoints or lab, engineering, test, or industrial systems where NI-PAL 20.0.0 or earlier is installed.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. Exploitation is described as local and requiring a privileged user, so remote unauthenticated exposure is not supported by the sources.
Researcher notes
Evidence is sparse: no CVSS vector, CWE, exploit status, or named fixed version appears in the bundle. Analysis should stay anchored to the NI advisory and CVE record until vendor details are confirmed.
Mitigation direction
- Inventory systems running NI-PAL and record installed versions.
- Check National Instruments guidance for supported updates or remediation.
- Prioritize remediation on shared systems and sensitive engineering hosts.
- Limit local privileged access to systems with NI-PAL installed.
- Remove NI-PAL where it is no longer required.
Validation and detection
- Confirm whether NI-PAL is installed on endpoints and lab systems.
- Verify whether installed versions are 20.0.0 or earlier.
- Review NI advisory for vendor-confirmed remediation details.
- Check privileged local account access on affected hosts.
- Track remediation status for every confirmed NI-PAL installation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-38304 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ni.com/en-us/support/documentation/supplemental/21/improper-input-validation-in-ni-pal.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.