No exploitation reportedFix available

CVE-2022-1786

Q: Is CVE-2022-1786 actively exploited?

Active exploitation of CVE-2022-1786 has not been confirmed. Its EPSS score was 1.0% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-1786?

CVE-2022-1786 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2022-06-02
Fixed in5.12
WeaknessCWE-416 · CWE-843

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

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.

Timeline

dates in UTC

2022-06-0214:15CVE publishedNVD

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-2022-1786?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-1786?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Linux linux kernel

Branch	Affected	Fixed in	Source
5.x	≥ 5.10, < 5.12	5.12	NVD

Netapp h300s firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Netapp h410c firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

3 more products in the sources.

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

Fix

Update Linux linux kernel to 5.12

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.8read 2026-10-23
NVDCVSS 2.07.2read 2026-10-23
CNAweakness (CWE)CWE-843read 2026-10-23
NVDweakness (CWE)CWE-416, CWE-843read 2026-10-23
FIRST EPSSEPSS score1.0 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2022-06-02
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-1786?

Is CVE-2022-1786 actively exploited?

Active exploitation of CVE-2022-1786 has not been confirmed. Its EPSS score was 1.0% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-1786?

CVE-2022-1786 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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