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

> CVE-2022-2586: Linux Kernel Use-After-Free Vulnerability. CVSS 5.3 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2022-2586
Last updated: 2026-10-14T13:11:40Z

- Published: 2024-01-08 17:46 UTC · Updated: 2026-10-14 13:11 UTC · Assigner: canonical
- CVSS: 5.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
- EPSS: 10.2%, 96th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2024-06-26, federal due date 2024-07-17, ransomware use: Unknown
- CWE: CWE-416

## Description

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.

## CISA required action

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

## Affected vendors and products

- linux: linux\_kernel
- Siemens: SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
- The Linux Kernel Organization: linux

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2022-2586)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2022-2586)
- [https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586)
- [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)
- [https://ubuntu.com/security/notices/USN-5557-1](https://ubuntu.com/security/notices/USN-5557-1)
- [https://ubuntu.com/security/notices/USN-5560-1](https://ubuntu.com/security/notices/USN-5560-1)
- [https://ubuntu.com/security/notices/USN-5560-2](https://ubuntu.com/security/notices/USN-5560-2)
- [https://ubuntu.com/security/notices/USN-5562-1](https://ubuntu.com/security/notices/USN-5562-1)
- [https://ubuntu.com/security/notices/USN-5564-1](https://ubuntu.com/security/notices/USN-5564-1)
- [https://ubuntu.com/security/notices/USN-5565-1](https://ubuntu.com/security/notices/USN-5565-1)
- [https://ubuntu.com/security/notices/USN-5566-1](https://ubuntu.com/security/notices/USN-5566-1)
- [https://ubuntu.com/security/notices/USN-5567-1](https://ubuntu.com/security/notices/USN-5567-1)
- [https://ubuntu.com/security/notices/USN-5582-1](https://ubuntu.com/security/notices/USN-5582-1)
- [https://www.openwall.com/lists/oss-security/2022/08/09/5](https://www.openwall.com/lists/oss-security/2022/08/09/5)
- [https://www.zerodayinitiative.com/advisories/ZDI-22-1118/](https://www.zerodayinitiative.com/advisories/ZDI-22-1118/)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2022-2586 · Markdown: https://rewindex.com/cve/CVE-2022-2586.md · JSON: https://rewindex.com/api/v1/cves/CVE-2022-2586 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:01.784Z