Security readout for executives and security teams
Plain-English summary
CVE-2018-6239 affects NVIDIA Jetson TX2 systems through speculative execution behavior. Local, unprivileged code may read cached information it should not access, creating an information disclosure risk. The public bundle identifies updates for versions prior to R28.3, with no cited evidence of active exploitation.
Executive priority
Treat this as a targeted remediation item for Jetson TX2 fleets, especially embedded or edge systems processing sensitive data. It is not currently supported by KEV evidence, but local information disclosure can matter in shared or exposed operational environments.
Technical view
The issue is a local information disclosure vulnerability on NVIDIA Jetson TX2. It involves speculative execution and unauthorized access to cached information by unprivileged code. The provided sources do not include CVSS, CWE, proof-of-concept details, or deeper implementation specifics.
Likely exposure
Exposure is limited to NVIDIA Jetson TX2 devices running releases before R28.3. Risk is higher where users, containers, applications, or workloads can execute local unprivileged code on the device.
Exploitation context
The source bundle says exploitation requires local, unprivileged code execution. CISA KEV status is false, and the provided sources do not cite in-the-wild exploitation or public exploit availability.
Researcher notes
Evidence is sparse: no CVSS, CWE, detailed vendor technical write-up, or exploit-status source is included. The key confirmed facts are Jetson TX2 scope, speculative execution, local unprivileged access, cached information disclosure, and update applicability before R28.3.
Mitigation direction
- Apply NVIDIA's R28.3 update to Jetson TX2 systems running earlier releases.
- Review NVIDIA advisory 4787 for current vendor guidance.
- Restrict untrusted local code execution on affected devices until updated.
- Prioritize devices handling secrets, credentials, customer data, or sensitive workloads.
Validation and detection
- Inventory Jetson TX2 devices and record installed release versions.
- Confirm whether each device is running R28.3 or an earlier release.
- Check local user, container, and application execution paths on affected devices.
- Verify update completion through device release/version records.
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
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CVE-2018-6239 mapping review
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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://nvidia.custhelp.com/app/answers/detail/a_id/4787CVE reference · x_refsource_CONFIRM
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.