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

- Exploited (CISA KEV): yes, added 2024-06-26
- Published: 2024-01-08
- CVSS: 5.3 MEDIUM (v3.1)
- EPSS: 10.2% (96th percentile)
- CWE: CWE-416

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.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2022-2586 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2022-2586