Threat Intelligence / CVE / CVE-2022-2586

CVE-2022-2586 — linux

CISA KEV
CVSS v3.1 5.3 (MEDIUM) · EPSS 10.4% (higher than 95.4% of all scored CVEs) · Priority 9/10 · Published 2024-01-08

As of 2026-08-20, CVE-2022-2586 is a MEDIUM-severity vulnerability in linux, CVSS v3.1 5.3, EPSS 10.4% (95.4th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-06-26), with a US federal remediation deadline of 2024-07-17. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2022-2586, most recently “EtherHiding: Blockchain-Based C2 on Polygon Fuels ClickFix Backdoor + Banking-Trojan Extension Campaign Adopted by Criminal, North Korean, and Iran-Linked Actors”.

Last updated: 2026-08-20

What is CVE-2022-2586?

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.

The record classifies CVE-2022-2586 under weakness class CWE-416. Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 988 days ago.

Severity and exploitation probability

CVSS v3.1 base score
5.3 — MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
EPSS (FIRST)
10.4% probability of exploitation in the next 30 days, higher than 95.4% of all scored CVEs
CISA KEV
Listed since 2024-06-26, federal remediation deadline 2024-07-17
Threadlinqs priority
9/10 — CISA KEV-listed, which Threadlinqs floors at 9
Published
2024-01-08, last modified 2026-08-20

Is CVE-2022-2586 being exploited?

CISA added CVE-2022-2586 to the Known Exploited Vulnerabilities catalog on 2024-06-26, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2024-07-17 under BOD 22-01. Weaponised exploit code for CVE-2022-2586 is publicly available. 4 public proof-of-concept repositories are tracked for this identifier. It currently carries a trending score of 42 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2022-2586

The record marks a vendor fix as available for CVE-2022-2586. Patch reference: https://lore.kernel.org/netfilter-devel/20220809170148.164591-1-cascardo@canonical.com/T/#t. Because CVE-2022-2586 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2024-07-17. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2022-2586

1 tracked threat in the Threadlinqs corpus references CVE-2022-2586, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, public proof-of-concept repositories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Third-party advisory

Issue tracking and product pages

Showing 9 of 13 recorded references.

Full detection coverage & IOCs for threats exploiting CVE-2022-2586 are available via the Threadlinqs MCP server (Purple tier). View plans →

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