What is CVE-2025-33221?

CVE-2025-33221 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2025-33221 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-33221?

CVE-2025-33221 has a CVSS score of 4.4 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2025-33221?

No patch is currently available for CVE-2025-33221. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2025-33221 actively exploited?

CVE-2025-33221 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-33221

Medium

NVIDIA Display Driver for Windows and Linux contains a vulnerability in the kernel driver, where a user could cause an incorrect permission assignment for a critical resource. A successful exploit of this vulnerability might lead to data tampering and denial of service.

Package Linux Kernel

Published 2026-05-26

Last modified 2026-05-26

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.4

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-20

CVE-2025-33221 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2025-33221 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Details

CVE ID CVE-2025-33221

Severity Medium

CVSS score 4.4 / 10

CVSS version 3.1

Published 2026-05-26

Modified 2026-05-26

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2025-33221?

CVE-2025-33221 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2025-33221 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-33221?

CVE-2025-33221 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2025-33221?

No patch is currently available for CVE-2025-33221. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2025-33221 actively exploited?

No — CVE-2025-33221 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Input Validation (CWE-20)?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. View CWE-20 on MITRE CWE →