CVE-2021-30002

Name: CVE-2021-30002
Creator: NVD / NIST
Published: 2021-04-02T05:15:12.767+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.2/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2021-30002 is a medium-severity vulnerability rated 6.2/10 on the CVSS scale. An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak for large arguments, aka CID-fb18802a338b.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak for large arguments, aka CID-fb18802a338b.

Metrics

CVSS 3.1

6.2/10

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

EPSS Probability

0.37%

29.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 5.11.3
Debian	Debian Linux	9.0

References

https://bugzilla.suse.com/show_bug.cgi?id=1184120Issue Tracking, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.3Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb18802a338b36f675a388fc03d2aa504a0d0899Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlThird Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1184120Issue Tracking, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.3Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb18802a338b36f675a388fc03d2aa504a0d0899Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlThird Party Advisory

Timeline

Published: Apr 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30002?

How severe is CVE-2021-30002?

CVE-2021-30002 has a CVSS score of 6.2/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30002?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-30002?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST