CVE-2024-1086 (GCVE-0-2024-1086)

Vulnerability from cvelistv5 – Published: 2024-01-31 12:14 – Updated: 2025-10-21 23:05
VLAI CISA KEVIntel
Title
Use-after-free in Linux kernel's netfilter: nf_tables component
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Kernel Affected: 3.15 , < 6.8 (custom)
Create a notification for this product.
linux linux_kernel Affected: 3.15 , < 6.8 (custom)
    cpe:2.3:o:linux:linux_kernel:3.15:*:*:*:*:*:*:*
 Create a notification for this product.
Date Public
2024-01-24 19:02
Credits
Notselwyn
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 3d1a8d60-f641-4699-8992-9dff1f28b623

Vulnerability ID: CVE-2024-1086

Status: Confirmed

Status Updated: 2024-05-30 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2024-05-30
Asserted: 2024-05-30
Scope
Notes: KEV entry: Linux Kernel Use-After-Free Vulnerability | Affected: Linux / Kernel | Description: Linux kernel contains a use-after-free vulnerability in the netfilter: nf_tables component that allows an attacker to achieve local privilege escalation. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2024-06-20 | Known ransomware campaign use (KEV): Known | Notes (KEV): This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f342de4e2f33e0e39165d8639387aa6c19dff660; https://nvd.nist.gov/vuln/detail/CVE-2024-1086
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-416
Feed CISA Known Exploited Vulnerabilities Catalog
Product Kernel
Due Date 2024-06-20
Date Added 2024-05-30
Vendorproject Linux
Vulnerabilityname Linux Kernel Use-After-Free Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-02-02 12:26 UTC | Updated: 2026-02-06 07:17 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e72dabb2-14a9-4a08-a25c-66d7f7fa103f

Vulnerability ID: CVE-2024-1086

Status: Confirmed

Status Updated: 2024-05-30 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2024-05-30
Asserted: 2024-05-30
Scope
Notes: KEVIntel entry: Use-after-free in Linux kernel's netfilter: nf_tables component | Affected: Linux / Kernel | CVSS: 7.8 (HIGH) | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Use-after-free in Linux kernel's netfilter: nf_tables component
Vendor Linux
Product Kernel
Added Date 2024-05-30T00:00:00.000Z
Cvss Score 7.8
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware yes
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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      "sourceIdentifier": "cve-coordination@google.com",
      "vulnStatus": "Undergoing Analysis",
      "weaknesses": "[{\"source\": \"cve-coordination@google.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}]"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T14:18:54.000Z",
      "cve": "CVE-2024-1086",
      "id": "msrc_CVE-2024-1086",
      "initial_release_date": "2024-01-01T08:00:00.000Z",
      "product_status:fixed": "4",
      "product_status:known_affected": "4",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Use-after-free in Linux kernel\u0027s netfilter: nf_tables component",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-1086.json",
      "version": "3"
    },
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La funci\u00f3n nft_verdict_init() permite valores positivos como error de eliminaci\u00f3n dentro del veredicto del gancho y, por lo tanto, la funci\u00f3n nf_hook_slow() puede causar una vulnerabilidad double free cuando NF_DROP se emite con un error de eliminaci\u00f3n similar a NF_ACCEPT. Recomendamos actualizar despu\u00e9s del compromiso 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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-28T08:00:23+00:00",
      "cve": "CVE-2024-1086",
      "id": "CVE-2024-1086",
      "initial_release_date": "2024-01-31T00:00:00+00:00",
      "product_status:fixed": "1654",
      "product_status:known_not_affected": "15",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-1086.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-07-17T13:40:24Z",
      "cve": "CVE-2024-1086",
      "id": "CVE-2024-1086",
      "initial_release_date": "2024-02-02T03:45:24Z",
      "product_status:known_affected": "295",
      "product_status:known_not_affected": "70",
      "product_status:recommended": "1119",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-1086",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-1086.json",
      "version": "72"
    },
    "vulnrichment": {
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}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.