LiveActive security incident?Get immediate response
CVE Record

CVE-2021-34379: Trusty contains a vulnerability in the HDCP service TA where bounds checking in command 10 is missing.

Trusty contains a vulnerability in the HDCP service TA where bounds checking in command 10 is missing. The length of an I/O buffer parameter is not checked, which might lead to memory corruption.

HighCVSS 7.7Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This affects NVIDIA Jetson devices running older Jetson Linux. A local, highly privileged user could trigger memory corruption in the Trusty HDCP trusted application. Business risk is highest for deployed embedded systems where Jetson modules are hard to inventory or update.

Executive priority

Prioritize in fleets using affected Jetson modules, especially operational technology, robotics, edge AI, or long-lived embedded deployments. The issue is high severity, but not described as remotely exploitable in the supplied sources.

Technical view

The HDCP service trusted application in Trusty lacks bounds checking for command 10. An unchecked I/O buffer length may cause memory corruption. CVSS 3.1 is 7.7 with local attack vector, high privileges, user interaction, changed scope, and high confidentiality, integrity, and availability impacts.

Likely exposure

Exposure is limited to NVIDIA Jetson AGX Xavier series, Jetson Xavier NX, Jetson TX2 series, and Jetson TX2 NX running Jetson Linux versions before r32.5.1.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. The CVSS vector indicates local access, high privileges, and user interaction are required, reducing internet-scale risk but not device-owner risk.

Researcher notes

Focus validation on Trusty HDCP service exposure within affected Jetson Linux builds. Sources do not provide CWE mapping, exploit evidence, or detailed patch internals. Avoid assuming impact beyond memory corruption and the CVSS-stated high CIA impacts.

Mitigation direction

  • Inventory Jetson Xavier and TX2 devices and their Jetson Linux versions.
  • Update affected devices to Jetson Linux r32.5.1 or later where applicable.
  • Review NVIDIA advisory 5205 for vendor-specific update guidance.
  • Limit local administrative access on devices awaiting update.
  • Track embedded products that include affected Jetson modules.

Validation and detection

  • Confirm each device model against the NVIDIA affected product list.
  • Verify Jetson Linux version is r32.5.1 or later.
  • Check update records for devices in field deployments.
  • Review access controls for local privileged users.
  • Document exceptions where updates cannot be applied immediately.
Prepared
Confidence
high
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2021-34379 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.7 (3.1)
Known Exploited
No
Published

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

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
7.7CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H1.16Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.7High
CVSS 3.1 vector shape for CVE-2021-34379Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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 AGX Xavier series, Jetson Xavier NX, Jetson TX2 series, Jetson TX2 NXAll 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.