How severe is CVE-2021-34393?

CVE-2021-34393 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-34393 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34393?

CVE-2021-34393 affects Nvidia Jetson Linux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34393?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-34393 published?

CVE-2021-34393 was published on 2021-06-22 and last updated on 2026-06-17.

CVE-2021-34393

CVE-2021-34393 is a medium-severity vulnerability in Nvidia Jetson Linux with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
CVSS v2: 2.1
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Nvidia Jetson Linux
Published: 2021-06-22
Last modified: 2026-06-17

Description

Trusty contains a vulnerability in TSEC TA which deserializes the incoming messages even though the TSEC TA does not expose any command. This vulnerability might allow an attacker to exploit the deserializer to impact code execution, causing information disclosure.

Frequently asked questions

What is CVE-2021-34393?: Trusty contains a vulnerability in TSEC TA which deserializes the incoming messages even though the TSEC TA does not expose any command. This vulnerability might allow an attacker to exploit the deserializer to impact code execution, causing information disclosure.
How severe is CVE-2021-34393?: CVE-2021-34393 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-34393 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34393?: CVE-2021-34393 affects Nvidia Jetson Linux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34393?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-34393 published?: CVE-2021-34393 was published on 2021-06-22 and last updated on 2026-06-17.

References

https://nvidia.custhelp.com/app/answers/detail/a_id/5205

Affected products (1)

cpe:2.3:o:nvidia:jetson_linux:*:*:*:*:*:*:*:*

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