CVE-2021-1056: debian debian_linux Incorrect Default Permissions
CVSS: 7.1v3.1HighModified
AliasesUBUNTU-CVE-2021-1056DEBIAN-CVE-2021-1056
Published 08-01-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-1056 is a high (CVSS 7.1) Incorrect Default Permissions vulnerability in debian debian_linux. EPSS estimates a 1.71% chance of exploitation in the next 30 days, higher than 76.9% of scored vulnerabilities.
CVSS score
7.1/10
010
High · v3.1 (NVD)EPSS score
1.71%
0%100%
Low · -0.07 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 2Timeline
- 08-01-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
NVIDIA GPU Display Driver for Linux, all versions, contains a vulnerability in the kernel mode layer (nvidia.ko) in which it does not completely honor operating system file system permissions to provide GPU device-level isolation, which may lead to denial of service or information disclosure.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.1Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Low 3.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.71%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
-0.07 pp
From 1.78% on 18-09-2026
18-09-202618-10-2026
EPSS score1.71%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu7 products
- nvidia-graphics-drivers-390< 390.141-0ubuntu0.18.04.1 | < 390.141-0ubuntu0.20.04.1
- nvidia-graphics-drivers-418-server< 418.181.07-0ubuntu0.18.04.1 | < 418.181.07-0ubuntu0.20.04.1
- nvidia-graphics-drivers-440-serverAll versions (No fix recorded)
- nvidia-graphics-drivers-450< 450.102.04-0ubuntu0.18.04.1 | < 450.102.04-0ubuntu0.20.04.1
- nvidia-graphics-drivers-450-server< 450.102.04-0ubuntu0.18.04.1 | < 450.102.04-0ubuntu0.20.04.1
Debian2 products
- nvidia-graphics-drivers< 460.32.03-1
- debian_linuxEOL9.0
Nvidia2 products
- gpu_driver≥ 390, < 390.141 | ≥ 450, < 450.102.04 | ≥ 460, < 460.32.03
- nvidia gpu display driverAll
3 vendors · 11 products
