Vulnerability Intelligence Report
Use-after-free in Linux kernel's netfilter: nf_tables component
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 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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:28.06%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
—
Weaknesses (CWE)
CWE-416 ↗CWE-416 Use After Free
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Linux | Kernel | 3.15 < 6.8 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Google LLC · Vendor · USA |
| Reserved | 2024-01-30T20:04:09 |
| Published | 2024-01-31T12:14:34 |
| Patch Date | 2024-01-24 |
| Last Updated | 2026-08-07T18:45:36 |
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