Public proof of conceptFix available

CVE-2021-1056

Q: Is CVE-2021-1056 actively exploited?

Active exploitation of CVE-2021-1056 has not been confirmed. Its EPSS score was 1.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2021-1056?

CVE-2021-1056 has a CVSS v3 base score of 7.1 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

A public proof of concept exists; no exploitation attested.

Published2021-01-08
Fixed in460.32.03 · 450.102.04 · 390.141
WeaknessCWE-276

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2021-01-0801:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-1056?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-1056?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Nvidia gpu driverversion to verify

Branch	Affected	Fixed in	Source
460.x	≥ 460, < 460.32.03	460.32.03	NVD
450.x	≥ 450, < 450.102.04	450.102.04	NVD
390.x	≥ 390, < 390.141	390.141	NVD

Debian debian linux

Branch	Affected	Fixed in	Source
9.0	= 9.0	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Nvidia gpu driver to 460.32.03 · 450.102.04 · 390.141

Advisories and patches

nvidia.custhelp.comVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedpokerfaceSad/CVE-2021-1056

Sources

NVDCVSS 3.17.1read 2026-10-23
NVDCVSS 2.03.6read 2026-10-23
NVDweakness (CWE)CWE-276read 2026-10-23
FIRST EPSSEPSS score1.7 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Published: 2021-01-08
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2021-1056?

Is CVE-2021-1056 actively exploited?

Active exploitation of CVE-2021-1056 has not been confirmed. Its EPSS score was 1.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-1056?

CVE-2021-1056 has a CVSS v3 base score of 7.1 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

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