How severe is CVE-2021-34378?

CVE-2021-34378 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-34378 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34378?

CVE-2021-34378 affects Nvidia Jetson Linux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34378?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-34378 published?

CVE-2021-34378 was published on 2021-06-30 and last updated on 2026-06-17.

CVE-2021-34378

CVE-2021-34378 is a high-severity vulnerability in Nvidia Jetson Linux with a CVSS 3.x base score of 7.7. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.7)
CVSS v2: 4.6
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Nvidia Jetson Linux
Published: 2021-06-30
Last modified: 2026-06-17

Description

Trusty contains a vulnerability in the HDCP service TA where bounds checking in command 11 is missing. Improper restriction of operations within the bounds of a memory buffer might lead to information disclosure, denial of service, or escalation of privileges.

Frequently asked questions

What is CVE-2021-34378?: Trusty contains a vulnerability in the HDCP service TA where bounds checking in command 11 is missing. Improper restriction of operations within the bounds of a memory buffer might lead to information disclosure, denial of service, or escalation of privileges.
How severe is CVE-2021-34378?: CVE-2021-34378 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-34378 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34378?: CVE-2021-34378 affects Nvidia Jetson Linux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34378?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-34378 published?: CVE-2021-34378 was published on 2021-06-30 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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