CVE WatchAug 20, 2026

CVE-2022-2586

Linux Kernel Use-After-Free Vulnerability

CVSS

5.3

Medium

EPSS

10.5%

p95

KEV

YES

Jun 26, 2024

Exploit Today

0-100

Published: Jan 8, 2024 · Last modified: Aug 20, 2026 · CWE-416

EPSS · 30d

10.5%EPSS · 30 days10.5%

2026-08-022026-08-31

KEV catalog record

Product

Linux / Kernel

Vulnerability

Linux Kernel Use-After-Free Vulnerability

Added to KEV

Jun 26, 2024

Remediate by

Jul 17, 2024

Known ransomware use

Summary description

Linux Kernel contains a use-after-free vulnerability in the nft_object, allowing local attackers to escalate privileges.

Required action

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

Notes

This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://seclists.org/oss-sec/2022/q3/131; https://nvd.nist.gov/vuln/detail/CVE-2022-2586

Technical 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.

Official references

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CVECVSSEPSSKEVRExploitTitleMod.

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——7A double-free vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.3d