CVE-2021-34380

Code execution via MB2 heap metadata corruption

Published Jun 30, 2021 · Updated Aug 4, 2024

Heap overflow in NVIDIA Jetson MB2 before Jetson Linux 32.5.1 allows local users to execute code, disclose data, or interrupt boot. During secure boot, MB2 overflows heap storage and corrupts allocator metadata through an operation that NVIDIA has not further disclosed. Exploitation requires low-privileged local access and high-complexity conditions; successful attacks can run code, expose information, or cause denial of service.

CVSS severity7.0
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap overflow in NVIDIA Jetson MB2 before Jetson Linux 32.5.1 allows local users to execute code, disclose data, or interrupt boot. During secure boot, MB2 overflows heap storage and corrupts allocator metadata through an operation that NVIDIA has not further disclosed. Exploitation requires low-privileged local access and high-complexity conditions; successful attacks can run code, expose information, or cause denial of service.

The record

CVE
CVE-2021-34380
Published
Jun 30, 2021
Updated
Aug 4, 2024
Vendor
NVIDIA
Product
NVIDIA Jetson
Classifications
CWE-787, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All Jetson Linux versions prior to r32.5.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

NVIDIA · NVIDIA Jetsonversion=All Jetson Linux versions prior to r32.5.1

Published CVSS scores

7.0NVIDIACVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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