CVE-2024-53101

Kernel service interruption via uninitialized OCFS2 attributes

Published Nov 25, 2024 · Updated May 12, 2026

Use of uninitialized values in Linux OCFS2 allows local users to interrupt kernel service through filesystem attribute changes. The ocfs2_setattr() tracepoint passes unset ia_mode, ia_uid, or ia_gid fields to from_kuid() and from_kgid() when the corresponding ATTR flags are absent. Exploitation requires local low-privileged access, an OCFS2 filesystem, and execution of the affected attribute-change trace path; no confidentiality or integrity impact is reported.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use of uninitialized values in Linux OCFS2 allows local users to interrupt kernel service through filesystem attribute changes. The ocfs2_setattr() tracepoint passes unset ia_mode, ia_uid, or ia_gid fields to from_kuid() and from_kgid() when the corresponding ATTR flags are absent. Exploitation requires local low-privileged access, an OCFS2 filesystem, and execution of the affected attribute-change trace path; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2024-53101
Published
Nov 25, 2024
Updated
May 12, 2026
Vendor
Siemens
Product
SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
Classifications
CWE-456, CWE-908, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 25, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 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=0 <V3.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familyversion=0 <V3.2
Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linuxversion=2.6.39; version=468eedde23d6c9335935773f4f5764267d5a7763 <15f34347481648a567db67fb473c23befb796af5; version=468eedde23d6c9335935773f4f5764267d5a7763 <17ecb40c5cc7755a321fb6148cba5797431ee5b8; version=468eedde23d6c9335935773f4f5764267d5a7763 <1c28bca1256aecece6e94b26b85cd07e08b0dc90; version=468eedde23d6c9335935773f4f5764267d5a7763 <1cb5bfc5bfc651982b6203c224d49b7ddacf28bc; version=468eedde23d6c9335935773f4f5764267d5a7763 <5a72b0d3497b818d8f000c347a7c11801eb27bfc; version=468eedde23d6c9335935773f4f5764267d5a7763 <9db25c2b41c34963c3ccf473b08171f87670652e; version=468eedde23d6c9335935773f4f5764267d5a7763 <a0c77e5e3dcbffc7c6080ccc89c037f0c86496cf; version=468eedde23d6c9335935773f4f5764267d5a7763 <b3e612bd8f64ce62e731e95f635e06a2efe3c80c
Siemens · SCALANCE XCM/XRM/XCH/XRH-300 familyversion=0 <V3.2
Siemens · RUGGEDCOM RST2428Pversion=0 <V3.2

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Siemens ProductCERTCVSS: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.

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

CWE-456Missing Initialization of a Variable
CWE-908Use of Uninitialized Resource
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo