CVE-2022-2586Linux Kernel Use-After-Free Vulnerability

It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.

7.8 HIGHEPSS 10.20%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-10-14 18:25 UTC

OverviewCVSS details

7.8HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Jan 8, 2024
Assigner: canonical

Affected

linux (The Linux Kernel Organization)

Versions: 3.16 before 4.14.316 · 4.15 before 4.19.256
Fixed in: 4.14.316, 4.19.256, 5.4.211

All affected versions →

Exploitation

Public exploit: Yes · 1 reference
CISA KEV: Listed · Jun 26, 2024
KEV due date: Jul 17, 2024
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 8

10.20%chance of exploitation in 30 days

Higher than 95.70% of CVEs

CVSS 3.1 · NVD

7.8High

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

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 3.1 · canonical (CNA)

5.3Medium

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

Attack vector: Local
Attack complexity: High
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: Low
Availability impact: High

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
7.8	HIGH	3.1NVD	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.3	MEDIUM	3.1canonical (CNA)	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H

CISA required action

⚡ Known exploited · remediation due Jul 17, 2024

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Details

CVE ID: CVE-2022-2586
Status: Analyzed
Assigner (CNA): canonical
Published: Jan 8, 2024
Last modified: 2026-10-14 18:25 UTC
Weaknesses: CWE-416

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-09 14:18 UTC.