BlackTreeIndependent security intelligence

Full vulnerability report · 2025

CVE-2023-53292High confidence

blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none

Linux · Linux

5.5MediumCVSS 3.1

Recommended action

Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available

Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

9 package states

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.

Ubuntu release	Source package	Vendor state	Fixed version	Evidence
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-hwe-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-intel`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency-hwe-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi-realtime`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-realtime`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 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-019113 · CSAF 2.0 · revision 2 · interimSiemens ProductCERTSSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6

5 known affected

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

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.6
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.6
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.6
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.6
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.6

Summary: In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none After grabbing q->sysfs_lock, q->elevator may become NULL because of elevator switch. Fix the NULL dereference on q->elevator by checking it with lock.
Remediation: Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.

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-2023-59897

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none After grabbing q->sysfs_lock, q->elevator may become NULL because of elevator switch. Fix the NULL dereference on q->elevator by checking it with lock.

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: 5.5 · CVSS 3.1
Advisory evidence: No linked advisory details stored yet

Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available

What, why and how

What

Why

The product dereferences a pointer that it expects to be valid but is NULL.

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

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

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.

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: local access → NULL Pointer Dereference → 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-476 ↗
CWE-476: NULL Pointer Dereference. The product dereferences a pointer that it expects to be valid but is NULL.
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:N/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.CNoneConfidentiality impact: No direct loss is represented by this metric.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-476

Official authority intelligence

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

ENISA EUVD · EUVD-2023-59897Official EUVD mapping

Official EUVD record

BSI · German · WID-SEC-W-2026-0349Dell Avamar und NetWorker: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Dell Avamar und Dell NetWorker ausnutzen, um Angriffe zu starten, die die Integrität, Vertraulichkeit und Verfügbarkeit von Systemen beeinträchtigen.

Official advisory

BSI · German · WID-SEC-W-2025-2053Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder nicht näher beschriebene Auswirkungen zu erzielen.

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0862Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2022-49135 Référence CVE CVE-2022-49158 https://www.cve.org/CVERecord?id=CVE-2022-49158 Référence CVE CVE-2022-49183 https://www.cve.org/CVERecord?id=CVE-2022-49183 Référence CVE CVE-2022-49822 https://www.cve.org/CVERecord?id=CVE-2022-49822 Référence CVE CVE-2022-50073 https://www.cve.org/CVERecord?id=CVE-2022-50073 Référence CVE CVE-2022-50472 https://www.cve.org/CVERecord?id=CVE-2022-50472 Référence CVE CVE-2022-50493 https://www.cve.org/CVERecord?id=CVE-2022-50493 Référence CVE CVE-2022-50552 https://www.cve.org/CVERecord?id=CVE-2022-50552 Référence CVE CVE-2023-53133 https://www.cve.org/CVERecord?id=CVE-2023-53133 Référence CVE CVE-2023-53292 https://www.cve.org/CVERecord?id=CVE-2023-53292 Référence CVE CVE-2023-53421 https://www.cve.org/CVERecord?id=CVE-2023-53421 Référence CVE CVE-2023-53596 https://www.cve.org/CVERecord?id=CVE-2023-53596 Référence CVE CVE-2023-53989 https://www.cve.org/CVERecord?id=CVE-2023-53989 Référence CVE CVE-2023-54125 https://www.cve.org/CVERecord?id=CVE-2023-54125 Référence CVE CVE-2023-54129 https://www.cve.org/CVERecord?id=CVE-2023-54129 Référence CVE CVE-2023-54271 https://www.cve.org/CVERecord?id=CVE-2023-54271 Référence CVE CVE-2023-54322 https://www.cve.org/CVERecord?id=CVE-2023-54322 Référence CVE CVE-2024-27012 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

d?id=CVE-2023-53218 Référence CVE CVE-2023-53221 https://www.cve.org/CVERecord?id=CVE-2023-53221 Référence CVE CVE-2023-53231 https://www.cve.org/CVERecord?id=CVE-2023-53231 Référence CVE CVE-2023-53240 https://www.cve.org/CVERecord?id=CVE-2023-53240 Référence CVE CVE-2023-53247 https://www.cve.org/CVERecord?id=CVE-2023-53247 Référence CVE CVE-2023-53248 https://www.cve.org/CVERecord?id=CVE-2023-53248 Référence CVE CVE-2023-53254 https://www.cve.org/CVERecord?id=CVE-2023-53254 Référence CVE CVE-2023-53258 https://www.cve.org/CVERecord?id=CVE-2023-53258 Référence CVE CVE-2023-53261 https://www.cve.org/CVERecord?id=CVE-2023-53261 Référence CVE CVE-2023-53292 https://www.cve.org/CVERecord?id=CVE-2023-53292 Référence CVE CVE-2023-53320 https://www.cve.org/CVERecord?id=CVE-2023-53320 Référence CVE CVE-2023-53323 https://www.cve.org/CVERecord?id=CVE-2023-53323 Référence CVE CVE-2023-53325 https://www.cve.org/CVERecord?id=CVE-2023-53325 Référence CVE CVE-2023-53332 https://www.cve.org/CVERecord?id=CVE-2023-53332 Référence CVE CVE-2023-53347 https://www.cve.org/CVERecord?id=CVE-2023-53347 Référence CVE CVE-2023-53348 https://www.cve.org/CVERecord?id=CVE-2023-53348 Référence CVE CVE-2023-53353 https://www.cve.org/CVERecord?id=CVE-2023-53353 Référence CVE CVE-2023-53355 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

Official advisory

CERT-FR · French · CERTFR-2025-AVI-1070Multiples vulnérabilités dans Microsoft CBL Mariner

De multiples vulnérabilités ont été découvertes dans Microsoft CBL Mariner. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.

Official advisory

CERT-FR · French · CERTFR-2025-AVI-1047Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-50581 Référence CVE CVE-2023-53183 https://www.cve.org/CVERecord?id=CVE-2023-53183 Référence CVE CVE-2023-53185 https://www.cve.org/CVERecord?id=CVE-2023-53185 Référence CVE CVE-2023-53188 https://www.cve.org/CVERecord?id=CVE-2023-53188 Référence CVE CVE-2023-53191 https://www.cve.org/CVERecord?id=CVE-2023-53191 Référence CVE CVE-2023-53204 https://www.cve.org/CVERecord?id=CVE-2023-53204 Référence CVE CVE-2023-53271 https://www.cve.org/CVERecord?id=CVE-2023-53271 Référence CVE CVE-2023-53282 https://www.cve.org/CVERecord?id=CVE-2023-53282 Référence CVE CVE-2023-53289 https://www.cve.org/CVERecord?id=CVE-2023-53289 Référence CVE CVE-2023-53292 https://www.cve.org/CVERecord?id=CVE-2023-53292 Référence CVE CVE-2023-53338 https://www.cve.org/CVERecord?id=CVE-2023-53338 Référence CVE CVE-2023-53339 https://www.cve.org/CVERecord?id=CVE-2023-53339 Référence CVE CVE-2023-53365 https://www.cve.org/CVERecord?id=CVE-2023-53365 Référence CVE CVE-2023-53373 https://www.cve.org/CVERecord?id=CVE-2023-53373 Référence CVE CVE-2023-53395 https://www.cve.org/CVERecord?id=CVE-2023-53395 Référence CVE CVE-2023-53433 https://www.cve.org/CVERecord?id=CVE-2023-53433 Référence CVE CVE-2023-53476 https://www.cve.org/CVERecord?id=CVE-2023-53476 Référence CVE CVE-2023-53477 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2025-AVI-1032Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2023-53272 Référence CVE CVE-2023-53274 https://www.cve.org/CVERecord?id=CVE-2023-53274 Référence CVE CVE-2023-53275 https://www.cve.org/CVERecord?id=CVE-2023-53275 Référence CVE CVE-2023-53280 https://www.cve.org/CVERecord?id=CVE-2023-53280 Référence CVE CVE-2023-53282 https://www.cve.org/CVERecord?id=CVE-2023-53282 Référence CVE CVE-2023-53286 https://www.cve.org/CVERecord?id=CVE-2023-53286 Référence CVE CVE-2023-53287 https://www.cve.org/CVERecord?id=CVE-2023-53287 Référence CVE CVE-2023-53288 https://www.cve.org/CVERecord?id=CVE-2023-53288 Référence CVE CVE-2023-53291 https://www.cve.org/CVERecord?id=CVE-2023-53291 Référence CVE CVE-2023-53292 https://www.cve.org/CVERecord?id=CVE-2023-53292 Référence CVE CVE-2023-53303 https://www.cve.org/CVERecord?id=CVE-2023-53303 Référence CVE CVE-2023-53304 https://www.cve.org/CVERecord?id=CVE-2023-53304 Référence CVE CVE-2023-53305 https://www.cve.org/CVERecord?id=CVE-2023-53305 Référence CVE CVE-2023-53309 https://www.cve.org/CVERecord?id=CVE-2023-53309 Référence CVE CVE-2023-53311 https://www.cve.org/CVERecord?id=CVE-2023-53311 Référence CVE CVE-2023-53312 https://www.cve.org/CVERecord?id=CVE-2023-53312 Référence CVE CVE-2023-53313 https://www.cve.org/CVERecord?id=CVE-2023-53313 Référence CVE CVE-2023-53314 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2025-AVI-1009Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2023-53264 Référence CVE CVE-2023-53272 https://www.cve.org/CVERecord?id=CVE-2023-53272 Référence CVE CVE-2023-53274 https://www.cve.org/CVERecord?id=CVE-2023-53274 Référence CVE CVE-2023-53275 https://www.cve.org/CVERecord?id=CVE-2023-53275 Référence CVE CVE-2023-53280 https://www.cve.org/CVERecord?id=CVE-2023-53280 Référence CVE CVE-2023-53286 https://www.cve.org/CVERecord?id=CVE-2023-53286 Référence CVE CVE-2023-53287 https://www.cve.org/CVERecord?id=CVE-2023-53287 Référence CVE CVE-2023-53288 https://www.cve.org/CVERecord?id=CVE-2023-53288 Référence CVE CVE-2023-53291 https://www.cve.org/CVERecord?id=CVE-2023-53291 Référence CVE CVE-2023-53292 https://www.cve.org/CVERecord?id=CVE-2023-53292 Référence CVE CVE-2023-53303 https://www.cve.org/CVERecord?id=CVE-2023-53303 Référence CVE CVE-2023-53304 https://www.cve.org/CVERecord?id=CVE-2023-53304 Référence CVE CVE-2023-53305 https://www.cve.org/CVERecord?id=CVE-2023-53305 Référence CVE CVE-2023-53309 https://www.cve.org/CVERecord?id=CVE-2023-53309 Référence CVE CVE-2023-53311 https://www.cve.org/CVERecord?id=CVE-2023-53311 Référence CVE CVE-2023-53312 https://www.cve.org/CVERecord?id=CVE-2023-53312 Référence CVE CVE-2023-53313 https://www.cve.org/CVERecord?id=CVE-2023-53313 Référence CVE CVE-2023-53314 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2025-AVI-0921Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2023-53276 Référence CVE CVE-2023-53277 https://www.cve.org/CVERecord?id=CVE-2023-53277 Référence CVE CVE-2023-53280 https://www.cve.org/CVERecord?id=CVE-2023-53280 Référence CVE CVE-2023-53281 https://www.cve.org/CVERecord?id=CVE-2023-53281 Référence CVE CVE-2023-53282 https://www.cve.org/CVERecord?id=CVE-2023-53282 Référence CVE CVE-2023-53286 https://www.cve.org/CVERecord?id=CVE-2023-53286 Référence CVE CVE-2023-53287 https://www.cve.org/CVERecord?id=CVE-2023-53287 Référence CVE CVE-2023-53288 https://www.cve.org/CVERecord?id=CVE-2023-53288 Référence CVE CVE-2023-53291 https://www.cve.org/CVERecord?id=CVE-2023-53291 Référence CVE CVE-2023-53292 https://www.cve.org/CVERecord?id=CVE-2023-53292 Référence CVE CVE-2023-53295 https://www.cve.org/CVERecord?id=CVE-2023-53295 Référence CVE CVE-2023-53297 https://www.cve.org/CVERecord?id=CVE-2023-53297 Référence CVE CVE-2023-53298 https://www.cve.org/CVERecord?id=CVE-2023-53298 Référence CVE CVE-2023-53299 https://www.cve.org/CVERecord?id=CVE-2023-53299 Référence CVE CVE-2023-53302 https://www.cve.org/CVERecord?id=CVE-2023-53302 Référence CVE CVE-2023-53303 https://www.cve.org/CVERecord?id=CVE-2023-53303 Référence CVE CVE-2023-53304 https://www.cve.org/CVERecord?id=CVE-2023-53304 Référence CVE CVE-2023-53305 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2025-AVI-0895Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2023-53277 Référence CVE CVE-2023-53280 https://www.cve.org/CVERecord?id=CVE-2023-53280 Référence CVE CVE-2023-53281 https://www.cve.org/CVERecord?id=CVE-2023-53281 Référence CVE CVE-2023-53282 https://www.cve.org/CVERecord?id=CVE-2023-53282 Référence CVE CVE-2023-53284 https://www.cve.org/CVERecord?id=CVE-2023-53284 Référence CVE CVE-2023-53286 https://www.cve.org/CVERecord?id=CVE-2023-53286 Référence CVE CVE-2023-53287 https://www.cve.org/CVERecord?id=CVE-2023-53287 Référence CVE CVE-2023-53288 https://www.cve.org/CVERecord?id=CVE-2023-53288 Référence CVE CVE-2023-53291 https://www.cve.org/CVERecord?id=CVE-2023-53291 Référence CVE CVE-2023-53292 https://www.cve.org/CVERecord?id=CVE-2023-53292 Référence CVE CVE-2023-53295 https://www.cve.org/CVERecord?id=CVE-2023-53295 Référence CVE CVE-2023-53297 https://www.cve.org/CVERecord?id=CVE-2023-53297 Référence CVE CVE-2023-53298 https://www.cve.org/CVERecord?id=CVE-2023-53298 Référence CVE CVE-2023-53299 https://www.cve.org/CVERecord?id=CVE-2023-53299 Référence CVE CVE-2023-53302 https://www.cve.org/CVERecord?id=CVE-2023-53302 Référence CVE CVE-2023-53303 https://www.cve.org/CVERecord?id=CVE-2023-53303 Référence CVE CVE-2023-53304 https://www.cve.org/CVERecord?id=CVE-2023-53304 Référence CVE CVE-2023-53305 https://www.cve.org/CVERecord?id=

Official advisory

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.: Patch available
Affected: SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.6; SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.6; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.6; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.6; SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.6
Fixed: < 5.19; 6.1.175 ≤ 6.1.*; 6.4.7 ≤ 6.4.*; 6.5 ≤ *
Action: Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround: Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.

Evidence and provenance

Published 16 Sept 2025 · Last source change 8 Sept 2026, 08:38 UTC · CWE-476 · NULL Pointer Dereference

CVE recordCVE.org · 5.2

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-2023-59897

Product sourceVendor CSAF · Siemens ProductCERT

Remediation sourceVendor CSAF · Siemens ProductCERT

CWE sourceCISA ADP

NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2025-09-16CVE published

2026-09-08Fixed release or patch reference recorded

ENISA EUVD · EUVD-2023-59897↗Vendor CSAF · Siemens ProductCERT↗Patch or update reference↗Patch or update reference↗CVE authority or vendor 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.

blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none

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

EUVD-2023-59897

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

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