CVE-2021-34372

Privilege escalation via OTE allocation integer overflow

Published Jun 22, 2021 · Updated Aug 4, 2024

Heap buffer overflow in NVIDIA Trusty on Jetson Linux before 32.5.1 allows local users to disclose data, escalate privileges, or crash devices. The NVIDIA OTE protocol parser uses an overflowed malloc() size calculation, creating an undersized heap buffer that message parsing overruns. A low-privilege local user must cause a crafted OTE protocol message to be parsed, and user interaction is required.

CVSS severity8.2
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in NVIDIA Trusty on Jetson Linux before 32.5.1 allows local users to disclose data, escalate privileges, or crash devices. The NVIDIA OTE protocol parser uses an overflowed malloc() size calculation, creating an undersized heap buffer that message parsing overruns. A low-privilege local user must cause a crafted OTE protocol message to be parsed, and user interaction is required.

The record

CVE
CVE-2021-34372
Published
Jun 22, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 22, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.2NVIDIACVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/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-190Integer Overflow or Wraparound
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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