CVE-2022-1786

Name: CVE-2022-1786
Creator: NVD / NIST
Published: 2022-06-02T14:15:33.15+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.00%

Last modified Jun 17, 2026

CVE-2022-1786 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.00%

58.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 5.10, < 5.12
Netapp	H410c Firmware	All versions
Netapp	H300s Firmware	All versions
Netapp	H500s Firmware	All versions
Netapp	H700s Firmware	All versions
Netapp	H410s Firmware	All versions

References

https://bugzilla.redhat.com/show_bug.cgi?id=2087760Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220722-0001/Third Party Advisory
https://www.debian.org/security/2022/dsa-5161Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2087760Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220722-0001/Third Party Advisory
https://www.debian.org/security/2022/dsa-5161Third Party Advisory

Timeline

Published: Jun 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-1786?

How severe is CVE-2022-1786?

CVE-2022-1786 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.

How do I fix CVE-2022-1786?

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-2022-1786?

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

Scan your code now

Source: NVD / NIST