CVE-2024-53111Public exploit

Private memory erasure via mremap address wraparound

Published Dec 2, 2024 · Updated Aug 5, 2026

Integer wraparound in Linux mremap allows local users to erase private anonymous memory via crafted mappings on 32-bit kernels. move_page_tables() adds the moved length to an end-position cursor, allowing unsigned address wraparound to make a failed comparison falsely report that page-table entries were copied. An unprivileged local process can trigger the condition with large fixed anonymous mappings; mremap() then returns an error after the original pages have been unmapped and their contents appear zeroed.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer wraparound in Linux mremap allows local users to erase private anonymous memory via crafted mappings on 32-bit kernels. move_page_tables() adds the moved length to an end-position cursor, allowing unsigned address wraparound to make a failed comparison falsely report that page-table entries were copied. An unprivileged local process can trigger the condition with large fixed anonymous mappings; mremap() then returns an error after the original pages have been unmapped and their contents appear zeroed.

The record

CVE
CVE-2024-53111
Published
Dec 2, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-190
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 2, 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=6.7
  2. Affected versionversion=af8ca1c149069176e6322a77b532e3ffd99ccffe <909543dc279a91122fb08e4653a72b82f0ad28f4
  3. Affected versionversion=af8ca1c149069176e6322a77b532e3ffd99ccffe <a4a282daf1a190f03790bf163458ea3c8d28d217

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=af8ca1c149069176e6322a77b532e3ffd99ccffe <909543dc279a91122fb08e4653a72b82f0ad28f4; version=af8ca1c149069176e6322a77b532e3ffd99ccffe <a4a282daf1a190f03790bf163458ea3c8d28d217

Published CVSS scores

5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 exploitPublished

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound

Public exploit references

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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