Is CVE-2022-1786 in the CISA KEV catalog?

No. CVE-2022-1786 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-1786?

CVE-2022-1786 has a CVSS v3 base score of 7.8 (HIGH).

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

CVE-2022-1786 has an EPSS score of 1.00% (59th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-1786?

Upgrade linux on debian 11 to 5.10.120-1 or later.

CVE & CISA-KEV Catalog

CVE-2022-1786

HIGH

7.8

CVSS v3

NVD

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.

CWE-843Type Confusion CWE-416Use After Free

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.120-1CVE-2022-1786

Fixed in:5.14.6-1CVE-2022-1786

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.00%probability of exploitation in 30 days

59thpercentile

Moderate risk: more likely to be exploited than 59% of all known CVEs.

References

Third-Party Advisory3

Related Vulnerabilities

Other CWE-843 (Type Confusion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-0611	High	8.8	99%	KEV	Fix
CVE-2012-0507	Critical	9.8	98%	KEV + Ransom	-
CVE-2017-8291	High	7.8	97%	KEV	Fix
CVE-2019-0752	High	7.5	82%	KEV + Ransom	-
CVE-2017-0037	High	8.1	80%	KEV	-
CVE-2016-7201	High	8.8	80%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.