# CVE-2022-2586 — linux **CISA KEV** > 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](https://cwe.mitre.org/data/definitions/416.html). 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. - [aels/CVE-2022-2586-LPE](https://github.com/aels/CVE-2022-2586-LPE) (github) - [sniper404ghostxploit/CVE-2022-2586](https://github.com/sniper404ghostxploit/CVE-2022-2586) (github) - [lanleft/CVE-2022-2586](https://github.com/lanleft/CVE-2022-2586) (github) - [trickest/cve](https://github.com/trickest/cve/blob/main/2022/CVE-2022-2586.md) (trickest) ## Affected products and versions - **The Linux Kernel Organization**: linux ## 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](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. - [EtherHiding: Blockchain-Based C2 on Polygon Fuels ClickFix Backdoor + Banking-Trojan Extension Campaign Adopted by Criminal, North Korean, and Iran-Linked Actors](https://intel.threadlinqs.com/threat/TL-2026-2273) — HIGH · 2026-09-01 ## Sources Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-09-03. This product uses the NVD API but is not endorsed or certified by the NVD. **Third-party advisory** - [ubuntu.com — third party advisory](https://ubuntu.com/security/notices/USN-5564-1) - [ubuntu.com — third party advisory (USN 5560 2)](https://ubuntu.com/security/notices/USN-5560-2) - [ubuntu.com — third party advisory (USN 5582 1)](https://ubuntu.com/security/notices/USN-5582-1) - [ubuntu.com — third party advisory (USN 5567 1)](https://ubuntu.com/security/notices/USN-5567-1) - [ubuntu.com — third party advisory (USN 5560 1)](https://ubuntu.com/security/notices/USN-5560-1) **Issue tracking and product pages** - [openwall.com — issue tracking](https://www.openwall.com/lists/oss-security/2022/08/09/5) - [zerodayinitiative.com — issue tracking](https://www.zerodayinitiative.com/advisories/ZDI-22-1118/) - [lore.kernel.org — issue tracking](https://lore.kernel.org/netfilter-devel/20220809170148.164591-1-cascardo@canonical.com/T/#t) - [cve.mitre.org — issue tracking](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586) _Showing 9 of 13 recorded references._ Canonical: https://intel.threadlinqs.com/cve/CVE-2022-2586 Full detection coverage and IOCs for threats exploiting CVE-2022-2586 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp