Security readout for executives and security teams
Plain-English summary
NVIDIA Jetson devices using older Jetson Linux releases have a bootloader flaw in MB2. A local, low-privileged attacker could trigger heap memory corruption, potentially disrupting the device or altering execution flow. The issue is medium severity because exploitation requires local access and high complexity, but impact to device integrity and availability can be high.
Executive priority
Prioritize remediation in embedded or edge environments where local access is plausible or device downtime affects operations. This is not sourced as actively exploited, but integrity and availability impacts make delayed patching risky for production Jetson fleets.
Technical view
CVE-2021-34384 is a potential heap overflow in NVIDIA MB2 bootloader affecting Jetson AGX Xavier, Xavier NX, TX2, and TX2 NX devices running Jetson Linux before r32.5.1. CVSS 3.1 is 6.3: local attack vector, high attack complexity, low privileges, no user interaction, high integrity and availability impact, no confidentiality impact.
Likely exposure
Exposure is likely limited to organizations operating affected NVIDIA Jetson hardware on Jetson Linux releases earlier than r32.5.1. Risk is highest where users or services can obtain local low-privileged access to deployed edge, robotics, embedded, or lab systems.
Exploitation context
The source bundle does not show CISA KEV listing or public active exploitation. The CVSS vector indicates exploitation is local and high complexity, requiring low privileges but no user interaction. Treat this as a serious device-hardening issue, not evidence of widespread remote exploitation.
Researcher notes
No CWE is supplied in the source bundle. Analysis should focus on MB2 bootloader heap memory corruption, local attack prerequisites, and affected Jetson Linux versions before r32.5.1. Avoid assuming remote exploitability, data theft, or affected NVIDIA products beyond the listed Jetson devices.
Mitigation direction
- Upgrade affected Jetson Linux installations to r32.5.1 or later per NVIDIA guidance.
- Confirm bootloader components are updated, not only application-layer packages.
- Restrict local account access on Jetson systems until updates are complete.
- Prioritize devices in exposed, shared, or physically accessible environments.
- Monitor NVIDIA advisory updates for any revised mitigation guidance.
Validation and detection
- Inventory Jetson AGX Xavier, Xavier NX, TX2, and TX2 NX devices.
- Record each device's Jetson Linux or L4T release version.
- Flag any affected device running a release before r32.5.1.
- Verify firmware and bootloader update completion after remediation.
- Review local user access paths on affected embedded deployments.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-34384 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:L/UI:N/S:U/C:N/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:L/UI:N/S:U/C:N/I:H/A:H15.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/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.