CVE-2021-34387: nvidia jetson_linux Incorrect Default Permissions
Vulnerability summary
CVE-2021-34387 is a high (CVSS 7.2) Incorrect Default Permissions vulnerability in nvidia jetson_linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 9.7% of scored vulnerabilities.
Timeline
- 21-06-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
The ARM TrustZone Technology on which Trusty is based on contains a vulnerability in access permission settings where the portion of the DRAM reserved for TrustZone is identity-mapped by TLK with read, write, and execute permissions, which gives write access to kernel code and data that is otherwise mapped read only.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
10%
Versus all other CVEs
30-day change
0.00 pp
From 0.21% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Nvidia2 products
- jetson_linux< 32.5.1
- nvidia jetson tx1All Jetson Linux versions prior to r32.5.1
1 vendor · 2 products