Security readout for executives and security teams
Plain-English summary
This is a low-severity NVIDIA Jetson bootloader flaw. On affected devices, a highly privileged local actor could trigger a memory-management error in MB2 that may cause limited denial of service. The sources do not indicate data theft, code execution, or remote exploitation.
Executive priority
Handle through normal embedded-device patch management. Prioritize internet-connected or shared-access Jetson systems, but this does not warrant emergency response based on the provided severity and exploitation evidence.
Technical view
CVE-2021-34397 affects NVIDIA MB2 in Jetson Linux versions before r32.5.1 on listed Jetson TX2 and Xavier platforms. The described issue is free-the-wrong-heap, with CVSS 3.1 score 1.9: local attack vector, high complexity, high privileges required, and low availability impact only.
Likely exposure
Exposure is limited to NVIDIA Jetson TX2 series, TX2 NX, AGX Xavier series, and Xavier NX devices running Jetson Linux before r32.5.1.
Exploitation context
The bundle does not cite active exploitation, and the CVE is not marked KEV. Exploitation requires local access and high privileges, making broad external attack exposure unlikely based on the provided evidence.
Researcher notes
The source bundle provides no CWE mapping and limited technical detail beyond MB2 free-the-wrong-heap and limited denial of service. Validation should focus on model, Jetson Linux version, and local privilege boundaries rather than remote scanning.
Mitigation direction
- Review NVIDIA advisory 5205 for vendor remediation guidance.
- Update affected Jetson Linux installations to r32.5.1 or later where applicable.
- Restrict local administrative access to Jetson devices.
- Track exceptions for devices that cannot be updated promptly.
Validation and detection
- Inventory Jetson TX2, TX2 NX, AGX Xavier, and Xavier NX devices.
- Verify each device runs Jetson Linux r32.5.1 or later.
- Confirm affected devices are not exposed to untrusted local administrators.
- Document any deferred updates and compensating controls.
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-2021-34397 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
- Low
- CVSS
- 1.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
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:N/S:U/C:N/I:N/A:L0.51.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
1.9LowVector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
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.