BlackTreeCVE Intelligence
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Full vulnerability report · 2023
CVE-2023-26607High confidence

In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c

Unknown · Unknown

Official source article: Siemens SSA-794697 ↗. Check the applicable product and release in the original source.

7.1HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.61% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Unknown Unknown and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

5 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 1 affected package state shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.4.19.37-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.4.19.37-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.4.19.37-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.4.19.37-1Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-794697 · CSAF 2.0 · revision 9 · interimSiemens ProductCERTSSA-794697: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP before V1.1
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Summary
In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.
Remediation
Update to V1.1 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-30402

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.

What

In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Out-of-bounds Read → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-125 ↗

CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-125Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2023-1432Siemens SIMATIC S7: Mehrere Schwachstellen

Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter, anonymer, authentisierter, physischer oder lokaler Angreifer kann mehrere Schwachstellen in Siemens SIMATIC S7 ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, seine Privilegien zu erweitern und Daten zu manipulieren.

Official advisory ↗
BSI · German · WID-SEC-2023-0481Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20230301Security Bulletin 01 Mar 2023

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 01 Mar 2023, published on 1 March 2023. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0453Multiples vulnérabilités dans les produits Siemens

VERecord?id=CVE-2023-0590 Référence CVE CVE-2023-1073 https://www.cve.org/CVERecord?id=CVE-2023-1073 Référence CVE CVE-2023-1077 https://www.cve.org/CVERecord?id=CVE-2023-1077 Référence CVE CVE-2023-1095 https://www.cve.org/CVERecord?id=CVE-2023-1095 Référence CVE CVE-2023-23454 https://www.cve.org/CVERecord?id=CVE-2023-23454 Référence CVE CVE-2023-23455 https://www.cve.org/CVERecord?id=CVE-2023-23455 Référence CVE CVE-2023-23559 https://www.cve.org/CVERecord?id=CVE-2023-23559 Référence CVE CVE-2023-25910 https://www.cve.org/CVERecord?id=CVE-2023-25910 Référence CVE CVE-2023-26495 https://www.cve.org/CVERecord?id=CVE-2023-26495 Référence CVE CVE-2023-26607 https://www.cve.org/CVERecord?id=CVE-2023-26607 Référence CVE CVE-2023-27465 https://www.cve.org/CVERecord?id=CVE-2023-27465 Référence CVE CVE-2023-28829 https://www.cve.org/CVERecord?id=CVE-2023-28829 Référence CVE CVE-2023-30757 https://www.cve.org/CVERecord?id=CVE-2023-30757 Référence CVE CVE-2023-30897 https://www.cve.org/CVERecord?id=CVE-2023-30897 Référence CVE CVE-2023-30901 https://www.cve.org/CVERecord?id=CVE-2023-30901 Référence CVE CVE-2023-31238 https://www.cve.org/CVERecord?id=CVE-2023-31238 Référence CVE CVE-2023-33121 https://www.cve.org/CVERecord?id=CVE-2023-33121 Référence CVE CVE-2023-33122 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0399Multiples vulnérabilités dans les produits NetApp HCI

De multiples vulnérabilités ont été découvertes dans les produits NetApp HCI . Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, une atteinte à l'intégrité des données et un déni de service.

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0333Multiples vulnérabilités dans le noyau Linux d'Ubuntu

cord?id=CVE-2023-1990 Référence CVE CVE-2023-1998 https://www.cve.org/CVERecord?id=CVE-2023-1998 Référence CVE CVE-2023-22997 https://www.cve.org/CVERecord?id=CVE-2023-22997 Référence CVE CVE-2023-23455 https://www.cve.org/CVERecord?id=CVE-2023-23455 Référence CVE CVE-2023-23559 https://www.cve.org/CVERecord?id=CVE-2023-23559 Référence CVE CVE-2023-25012 https://www.cve.org/CVERecord?id=CVE-2023-25012 Référence CVE CVE-2023-26545 https://www.cve.org/CVERecord?id=CVE-2023-26545 Référence CVE CVE-2023-26605 https://www.cve.org/CVERecord?id=CVE-2023-26605 Référence CVE CVE-2023-26606 https://www.cve.org/CVERecord?id=CVE-2023-26606 Référence CVE CVE-2023-26607 https://www.cve.org/CVERecord?id=CVE-2023-26607 Référence CVE CVE-2023-28328 https://www.cve.org/CVERecord?id=CVE-2023-28328 Référence CVE CVE-2023-28466 https://www.cve.org/CVERecord?id=CVE-2023-28466 Référence CVE CVE-2023-28866 https://www.cve.org/CVERecord?id=CVE-2023-28866 Référence CVE CVE-2023-30456 https://www.cve.org/CVERecord?id=CVE-2023-30456 Gestion détaillée du document le 21 avril 2023 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de l

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0315Multiples vulnérabilités dans le noyau Linux d'Ubuntu

VERecord?id=CVE-2023-0461 Référence CVE CVE-2023-1074 https://www.cve.org/CVERecord?id=CVE-2023-1074 Référence CVE CVE-2023-1095 https://www.cve.org/CVERecord?id=CVE-2023-1095 Référence CVE CVE-2023-1118 https://www.cve.org/CVERecord?id=CVE-2023-1118 Référence CVE CVE-2023-23454 https://www.cve.org/CVERecord?id=CVE-2023-23454 Référence CVE CVE-2023-23455 https://www.cve.org/CVERecord?id=CVE-2023-23455 Référence CVE CVE-2023-23559 https://www.cve.org/CVERecord?id=CVE-2023-23559 Référence CVE CVE-2023-26545 https://www.cve.org/CVERecord?id=CVE-2023-26545 Référence CVE CVE-2023-26606 https://www.cve.org/CVERecord?id=CVE-2023-26606 Référence CVE CVE-2023-26607 https://www.cve.org/CVERecord?id=CVE-2023-26607 Référence CVE CVE-2023-28328 https://www.cve.org/CVERecord?id=CVE-2023-28328 Gestion détaillée du document le 14 avril 2023 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0278Multiples vulnérabilités dans le noyau Linux d'Ubuntu

VERecord?id=CVE-2023-1075 Référence CVE CVE-2023-1078 https://www.cve.org/CVERecord?id=CVE-2023-1078 Référence CVE CVE-2023-1195 https://www.cve.org/CVERecord?id=CVE-2023-1195 Référence CVE CVE-2023-1281 https://www.cve.org/CVERecord?id=CVE-2023-1281 Référence CVE CVE-2023-23454 https://www.cve.org/CVERecord?id=CVE-2023-23454 Référence CVE CVE-2023-23455 https://www.cve.org/CVERecord?id=CVE-2023-23455 Référence CVE CVE-2023-23559 https://www.cve.org/CVERecord?id=CVE-2023-23559 Référence CVE CVE-2023-26545 https://www.cve.org/CVERecord?id=CVE-2023-26545 Référence CVE CVE-2023-26606 https://www.cve.org/CVERecord?id=CVE-2023-26606 Référence CVE CVE-2023-26607 https://www.cve.org/CVERecord?id=CVE-2023-26607 Référence CVE CVE-2023-28328 https://www.cve.org/CVERecord?id=CVE-2023-28328 Gestion détaillée du document le 31 mars 2023 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2023-004636Linux の Linux Kernel 他複数ベンダの製品における境界外読み取りに関する脆弱性

Linux の Linux Kernel 他複数ベンダの製品には、境界外読み取りに関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 26 Feb 2023 · Last source change 5 May 2025, 16:03 UTC · CWE-125 · Out-of-bounds Read

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-30402
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCISA ADP
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    Siemens ProductCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Remediation guidance recorded
ENISA EUVD · EUVD-2023-30402↗Siemens ProductCERT security advisory · Siemens SSA-794697↗CISA Vulnrichment SSVC evidence↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-26607 · cve.blacktree.nl