CVE-2024-41090

Kernel memory corruption via unchecked TAP frame length

Published Jul 29, 2024 · Updated Aug 5, 2026

Out-of-bounds access in affected Linux kernel releases allows local users to expose or corrupt kernel memory via short TAP XDP frames. tap_get_user_xdp passes frames shorter than ETH_HLEN to skb_set_network_header without first validating their length, producing inconsistent skb metadata. Reachability requires an authorized guest VM or local access to vhost-net and a TAP-family device; consequences include host-memory disclosure, corruption, and kernel panic.

CVSS severity8.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in affected Linux kernel releases allows local users to expose or corrupt kernel memory via short TAP XDP frames. tap_get_user_xdp passes frames shorter than ETH_HLEN to skb_set_network_header without first validating their length, producing inconsistent skb metadata. Reachability requires an authorized guest VM or local access to vhost-net and a TAP-family device; consequences include host-memory disclosure, corruption, and kernel panic.

The record

CVE
CVE-2024-41090
Published
Jul 29, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0efac27791ee068075d80f07c55a229b1335ce12 <73d462a38d5f782b7c872fe9ae8393d9ef5483da
  2. Affected versionversion=0efac27791ee068075d80f07c55a229b1335ce12 <7431144b406ae82807eb87d8c98e518475b0450f
  3. Affected versionversion=0efac27791ee068075d80f07c55a229b1335ce12 <8be915fc5ff9a5e296f6538be12ea75a1a93bdea
  4. Affected versionversion=0efac27791ee068075d80f07c55a229b1335ce12 <aa6a5704cab861c9b2ae9f475076e1881e87f5aa
  5. Affected versionversion=0efac27791ee068075d80f07c55a229b1335ce12 <e1a786b9bbb767fd1c922d424aaa8078cc542309
  6. Affected versionversion=0efac27791ee068075d80f07c55a229b1335ce12 <e5e5e63c506b93b89b01f522b6a7343585f784e6
  7. Affected versionversion=0efac27791ee068075d80f07c55a229b1335ce12 <ed7f2afdd0e043a397677e597ced0830b83ba0b3
  8. Affected versionversion=0efac27791ee068075d80f07c55a229b1335ce12 <ee93e6da30377cf2a75e16cd32bb9fcd86a61c46
  9. Affected versionversion=4.20

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0efac27791ee068075d80f07c55a229b1335ce12 <73d462a38d5f782b7c872fe9ae8393d9ef5483da; version=0efac27791ee068075d80f07c55a229b1335ce12 <7431144b406ae82807eb87d8c98e518475b0450f; version=0efac27791ee068075d80f07c55a229b1335ce12 <8be915fc5ff9a5e296f6538be12ea75a1a93bdea; version=0efac27791ee068075d80f07c55a229b1335ce12 <aa6a5704cab861c9b2ae9f475076e1881e87f5aa; version=0efac27791ee068075d80f07c55a229b1335ce12 <e1a786b9bbb767fd1c922d424aaa8078cc542309; version=0efac27791ee068075d80f07c55a229b1335ce12 <e5e5e63c506b93b89b01f522b6a7343585f784e6; version=0efac27791ee068075d80f07c55a229b1335ce12 <ed7f2afdd0e043a397677e597ced0830b83ba0b3; version=0efac27791ee068075d80f07c55a229b1335ce12 <ee93e6da30377cf2a75e16cd32bb9fcd86a61c46; version=4.20

Published CVSS scores

8.8Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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