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

Vulnerability from cvelistv5 – Published: 2024-01-31 12:14 – Updated: 2026-08-07 18:45
VLAI CISA Previdian
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 · CISA-ADP (v2.0.3)
Decision recorded 2024-06-13 14:20 UTC
CWE
Assigner
Google CNA under the Google root
CNA scorecard B 77/100 over 40 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Kernel Affected: 3.15 , < 6.8 (custom)
guessed 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
Previdian
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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          "value": "A use-after-free vulnerability in the Linux kernel\u0027s netfilter: nf_tables component can be exploited to achieve local privilege escalation.\n\nThe 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.\n\nWe recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.\n\n"
        },
        {
          "lang": "es",
          "value": "Una vulnerabilidad de use after free en el componente netfilter: nf_tables del kernel de Linux puede explotarse para lograr una escalada de privilegios local. 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 f342de4e2f33e0e39165d8639387aa6c19dff660."
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        "dateReserved": "2024-01-30T20:04:09.704Z",
        "dateUpdated": "2025-10-21T23:05:25.720Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.