CVE-2024-1086

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The…

Browse: All 2024 CVEs · All vendors

CVSS score: 7.8 High
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA KEV: Yes — actively exploited (added 2024-05-30, remediation due 2024-06-20)
Ransomware: Known ransomware campaign use
Weakness (CWE): CWE-416
Published: 2024-01-31
Last modified: 2026-08-07
NVD status: Analyzed

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

Affected products

netapp h300s firmware
netapp h500s firmware
netapp h700s firmware
netapp h410s firmware
netapp h410c firmware
netapp bootstrap os
linux linux kernel
fedoraproject fedora
redhat enterprise linux desktop
redhat enterprise linux for ibm z systems
redhat enterprise linux for power big endian
redhat enterprise linux for power little endian

Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.

Required action (CISA)

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Federal remediation deadline: 2024-06-20.

How to prioritize this

This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score.

References

FAQ

Is CVE-2024-1086 actively exploited?

Yes. CISA added CVE-2024-1086 to its Known Exploited Vulnerabilities (KEV) catalog on 2024-05-30, with a federal remediation deadline of 2024-06-20. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.

What is the CVSS score of CVE-2024-1086?

CVE-2024-1086 has a CVSS base score of 7.8 (High). Its vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Related vulnerabilities

Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.