What is CVE-2021-34373?

CVE-2021-34373 is a high-severity vulnerability in NVIDIA Jetson Linux, classified under Out-of-bounds Write. CVSS score: 7.9/10. Published 2021-06-30.

How severe is CVE-2021-34373?

High severity. CVSS v3 base score is 7.9 out of 10.

Buffer overflow in NVIDIA Jetson Linux

CVE-2021-34373

Trusty trusted Linux kernel (TLK) contains a vulnerability in the NVIDIA TLK kernel where a lack of heap hardening could cause heap overflows, which might lead to information disclosure and denial of service.

Vulnerability class: Buffer Overflow

Published 2021-06-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.9 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (15.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

NVIDIA Jetson Linux
NVIDIA Jetson Tx1
NVIDIA Jetson Tx1 — versions All Jetson Linux versions prior to r32.5.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

nvidia.custhelp.com/app/answers/detail/a_id/5205 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-34373?: CVE-2021-34373 is a high-severity vulnerability in NVIDIA Jetson Linux, classified under Out-of-bounds Write. CVSS score: 7.9/10. Published 2021-06-30.
How severe is CVE-2021-34373?: High severity. CVSS v3 base score is 7.9 out of 10.