CVE-2023-53211

Service interruption via leaked ACPI location data

Published Sep 15, 2025 · Updated Sep 15, 2025

Memory leak in the Linux kernel driver core allows local users to interrupt service by exhausting memory during device registration. In dev_add_physical_location(), a failed allocation for dev->physical_location returns without releasing the previously allocated ACPI PLD structure. Reachability requires an ACPI-backed device and the allocation-failure path; each failure loses kernel memory and sustained resource pressure can interrupt service.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux kernel driver core allows local users to interrupt service by exhausting memory during device registration. In dev_add_physical_location(), a failed allocation for dev->physical_location returns without releasing the previously allocated ACPI PLD structure. Reachability requires an ACPI-backed device and the allocation-failure path; each failure loses kernel memory and sustained resource pressure can interrupt service.

The record

CVE
CVE-2023-53211
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.001
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2025Record 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=5.19
  2. Affected versionversion=bc443c31def574e3bfaed50cb493b8305ad79435 <0d150f967e8410e1e6712484543eec709356a65d
  3. Affected versionversion=bc443c31def574e3bfaed50cb493b8305ad79435 <5a9de90951bbeaed775e4b8d1b16b4d359e82bf5
  4. Affected versionversion=bc443c31def574e3bfaed50cb493b8305ad79435 <8fe72b8f59f63ca776bb8a4fcd2f406057a9fc90

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.19; version=bc443c31def574e3bfaed50cb493b8305ad79435 <0d150f967e8410e1e6712484543eec709356a65d; version=bc443c31def574e3bfaed50cb493b8305ad79435 <5a9de90951bbeaed775e4b8d1b16b4d359e82bf5; version=bc443c31def574e3bfaed50cb493b8305ad79435 <8fe72b8f59f63ca776bb8a4fcd2f406057a9fc90

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499.001Endpoint Denial of Service: OS Exhaustion Flood

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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