CVE-2024-27007

Memory corruption via premature huge-folio metadata change

Published May 1, 2024 · Updated Aug 5, 2026

Memory corruption in affected Linux kernels allows local users to disrupt memory management through huge-page UFFDIO_MOVE operations. The huge-page path changes src_folio mapping and index metadata before clearing the page table and confirming that the folio is unpinned. A local low-privileged user must invoke UFFDIO_MOVE on a huge page; failure can block swapout or migration and corrupt kernel memory.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in affected Linux kernels allows local users to disrupt memory management through huge-page UFFDIO_MOVE operations. The huge-page path changes src_folio mapping and index metadata before clearing the page table and confirming that the folio is unpinned. A local low-privileged user must invoke UFFDIO_MOVE on a huge page; failure can block swapout or migration and corrupt kernel memory.

The record

CVE
CVE-2024-27007
Published
May 1, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.8
  2. Affected versionversion=adef440691bab824e39c1b17382322d195e1fab0 <c0205eaf3af9f5db14d4b5ee4abacf4a583c3c50
  3. Affected versionversion=adef440691bab824e39c1b17382322d195e1fab0 <df5f6e683e7f21a15d8be6e7a0c7a46436963ebe

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=adef440691bab824e39c1b17382322d195e1fab0 <c0205eaf3af9f5db14d4b5ee4abacf4a583c3c50; version=adef440691bab824e39c1b17382322d195e1fab0 <df5f6e683e7f21a15d8be6e7a0c7a46436963ebe

Published CVSS scores

7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

No sourced classifications are available.

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

See the directory against your own environment.

Your stack

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