CVE-2024-53137

Local service interruption via faulting ARM cacheflush

Published Dec 4, 2024 · Updated May 11, 2026

Improper user-access handling in Linux 6.10 through 6.11.9 allows local users to interrupt service through the ARM cacheflush syscall. The __do_cache_op function calls flush_icache_user_range without enabling user access, so PAN blocks the cache-maintenance access and causes a fault. Reachability requires a 32-bit ARM LPAE kernel with PAN enabled and low-privilege local execution; the reported consequence is limited to availability.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper user-access handling in Linux 6.10 through 6.11.9 allows local users to interrupt service through the ARM cacheflush syscall. The __do_cache_op function calls flush_icache_user_range without enabling user access, so PAN blocks the cache-maintenance access and causes a fault. Reachability requires a 32-bit ARM LPAE kernel with PAN enabled and low-privilege local execution; the reported consequence is limited to availability.

The record

CVE
CVE-2024-53137
Published
Dec 4, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 4, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=6.10
  2. Affected versionversion=7af5b901e84743c608aae90cb0e429702812c324 <ca29cfcc4a21083d671522ad384532e28a43f033
  3. Affected versionversion=7af5b901e84743c608aae90cb0e429702812c324 <e6960a2ed49c9a25357817535f7cc50594a58604

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.10; version=7af5b901e84743c608aae90cb0e429702812c324 <ca29cfcc4a21083d671522ad384532e28a43f033; version=7af5b901e84743c608aae90cb0e429702812c324 <e6960a2ed49c9a25357817535f7cc50594a58604

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS: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

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

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint 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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