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CVE Record

CVE-2021-34395: Trusty TLK contains a vulnerability in its access permission settings where it does not properly restrict a...

Trusty TLK contains a vulnerability in its access permission settings where it does not properly restrict access to a resource from a user with local privileges, which might lead to limited information disclosure, a low risk of modifcations to data, and limited denial of service.

LowCVSS 3.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2021-34395 is a low-severity NVIDIA Jetson TX1 issue in Trusty TLK access permissions. A user who already has high local privileges may be able to cause limited data modification or denial of service. Business urgency is low unless Jetson TX1 systems are deployed in sensitive or hard-to-update environments.

Executive priority

Low priority for most organizations, but still schedule remediation for managed Jetson TX1 fleets. Escalate if affected devices support critical operations, are shared with many privileged users, or cannot be physically controlled.

Technical view

The CVE describes improper restriction of access to a resource in Trusty TLK on NVIDIA Jetson TX1. Affected versions are Jetson Linux releases before r32.5.1. The CVSS 3.1 vector is local, high complexity, high privileges required, no user interaction, changed scope, no confidentiality impact, low integrity impact, and low availability impact.

Likely exposure

Exposure is limited to NVIDIA Jetson TX1 devices running Jetson Linux versions prior to r32.5.1. The issue requires local access with high privileges, so remote unauthenticated exposure is not supported by the provided sources.

Exploitation context

The source bundle does not identify active exploitation, public exploit use, or inclusion in CISA KEV. Treat this as a local post-access weakness rather than an internet-facing emergency, based on the cited CVSS vector and KEV status.

Researcher notes

No CWE is listed in the provided CVE data. The main constraints are AV:L, AC:H, and PR:H, which sharply limit exploitability. The description mentions limited information disclosure, but the CVSS vector records C:N, so confidentiality impact should be treated as unclear from the bundle.

Mitigation direction

  • Upgrade affected Jetson TX1 systems to Jetson Linux r32.5.1 or later.
  • Review NVIDIA advisory guidance for product-specific update details.
  • Restrict local privileged access on Jetson TX1 devices.
  • Prioritize devices in safety, production, or physically exposed environments.

Validation and detection

  • Inventory NVIDIA Jetson TX1 devices in the environment.
  • Confirm each device runs Jetson Linux r32.5.1 or later.
  • Check whether privileged local users are limited to trusted administrators.
  • Document exceptions where devices cannot be upgraded promptly.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2021-34395 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Low
CVSS
3.9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
3.9CVSS 3.1LowCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L0.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

3.9Low
CVSS 3.1 vector shape for CVE-2021-34395Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
NVIDIANVIDIA Jetson TX1All Jetson Linux versions prior to r32.5.1Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.