Security readout for executives and security teams
Plain-English summary
CVE-2021-34385 affects NVIDIA Jetson TX1 systems running Jetson Linux before r32.5.1. A flaw in the trusted kernel’s length calculation could corrupt memory. The attack conditions are constrained, but successful exploitation could affect confidentiality, integrity, and availability.
Executive priority
Treat this as a targeted embedded-device risk, not a broad emergency. Patch affected Jetson TX1 assets during the next security maintenance cycle, sooner where devices are exposed to untrusted local users or safety-critical workloads.
Technical view
Trusty TLK in the NVIDIA TLK kernel has an integer overflow during length calculation that could lead to heap overflow. The CVSS 3.1 vector is local, high complexity, high privileges, user interaction required, unchanged scope, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to NVIDIA Jetson TX1 devices on Jetson Linux versions earlier than r32.5.1. The provided sources do not identify other NVIDIA products or platforms as affected.
Exploitation context
The source bundle does not indicate CISA KEV listing or active exploitation. CVSS requires local access, high privileges, high attack complexity, and user interaction, which lowers broad internet-scale risk.
Researcher notes
Evidence is narrow: affected product, pre-r32.5.1 version range, CVSS vector, and heap-overflow consequence are known. Sources do not provide exploit details, proof of exploitation, CWE mapping, or affected products beyond Jetson TX1.
Mitigation direction
- Upgrade affected Jetson TX1 devices to Jetson Linux r32.5.1 or later.
- Review NVIDIA advisory 5205 for vendor-specific remediation guidance.
- Prioritize systems where untrusted users can gain privileged local access.
- Apply compensating controls until updates are complete.
Validation and detection
- Inventory Jetson TX1 devices in production, labs, and embedded deployments.
- Confirm each device runs Jetson Linux r32.5.1 or later.
- Document any device that cannot be upgraded promptly.
- Track NVIDIA advisory updates for revised affected-version or mitigation details.
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-2021-34385 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
- Medium
- CVSS
- 6.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe 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.
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H0.35.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://nvidia.custhelp.com/app/answers/detail/a_id/5205CVE 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.