MediumCVE-2026-31619

    Linux Kernel: security vulnerability (CVE-2026-31619)

    Published Last modified Sources: SUSE, Debian, Debian LTS, Ubuntu, BSI, CVE.org, EUVD, Msrc Update Guide

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    What is affected, what to do

    In the Linux kernel, the following vulnerability has been resolved: ALSA: fireworks: bound device-supplied status before string array lookup The status field in an EFW response is a 32-bit value supplied by the firewire device. efr_status_names[] has 17 entries so a status value outside that range goes off into the weeds when looking at the %s value. Even worse, the status could return EFR_STATUS_INCOMPLETE which is 0x80000000, and is obviously not in that array of potential strings.

    Update Linux Kernel to version 5.10.258, Linux Kernel to version 5.15.209, Linux Kernel to version 6.1.175.

    Affected
    • Linux Kernel lt 3.16..5.10.258
    • Linux Kernel lt 5.11..5.15.209
    • Linux Kernel lt 5.16..6.1.175
    • Linux Kernel lt 6.2..6.6.136
    • Linux Kernel lt 6.7..6.12.83
    • Linux Kernel lt 6.13..6.18.24
    • Linux Kernel lt 6.19..6.19.14
    • Linux Kernel lt 6.20..7.0.1
    Fixed in
    • Linux Kernel 5.10.258
    • Linux Kernel 5.15.209
    • Linux Kernel 6.1.175
    • Linux Kernel 6.6.136
    • Linux Kernel 6.12.83
    • Linux Kernel 6.18.24
    • Linux Kernel 6.19.14
    • Linux Kernel 7.0.1
    • Linux Kernel 7.1

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    5.5

    XIEM Effective CVSS

    Highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    5.5

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: SUSE, Debian, Debian LTS, Ubuntu, BSI, CVE.org, EUVD, Msrc Update Guide

    0.1 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 2.3

    Show all metrics
    Severity
    Medium
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    43.59 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    5.5 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    5.5
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    0.1 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    2.3
    Low — this CVE sits in the lower 10% of all CVEs scored today.
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CISA assessment (SSVC)
    Exploitation: none known · not automatable · Technical impact: partial
    Source: CISA Vulnrichment, as of 6 November 2026

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    In the Linux kernel, the following vulnerability has been resolved: ALSA: fireworks: bound device-supplied status before string array lookup The status field in an EFW response is a 32-bit value supplied by the firewire device. efr_status_names[] has 17 entries so a status value outside that range goes off into the weeds when looking at the %s value. Even worse, the status could return EFR_STATUS_INCOMPLETE which is 0x80000000, and is obviously not in that array of potential strings. Fix this up by properly bounding the index against the array size and printing "unknown" if it's not recognized.

    Source: suse_csaf, Debian Security Advisories, Debian LTS Advisories, Ubuntu Security Notices, BSI WID Portal, BSI CSAF, NVD (NIST), ENISA EUVD, cvelistv5, CVE.org (MITRE), Microsoft Security Update Guide

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    LinuxLinux
    • 5.16 – < 6.1.175
    • 3.16 – < 5.10.258
    • 6.2 – < 6.6.136
    • 6.19 – < 6.19.14
    • 5.11 – < 5.15.209
    • 6.13 – < 6.18.24
    • —
    • 6.7 – < 6.12.83
    • 6.20 – < 7.0.1
    • 6.1.175
    • 5.10.258
    • 6.6.136
    • 6.19.14
    • 5.15.209
    • 6.18.24
    • 7.1
    • 6.12.83
    • 7.0.1

    Vendors and products

    Affected operating systems

    Affected operating systems
    Linuxdebianlinuxbookworm
    Linuxdebianlinuxbullseye
    Linuxdebianlinuxtrixie
    Linuxdebianlinux-6.1bullseye
    Linuxubuntulinux-raspijammy
    Linuxlinuxlinux_kernel—

    References & sources

    • git.kernel.orgstable/c/f856f4b6efd51be7950e4b84c06cd961961ca41ceuvd, Patch
    • git.kernel.orgstable/c/e103f98f6615ed2934e9cf340654f0cad9eb8a8aeuvd, Patch
    • git.kernel.orgstable/c/67cfd14074cdafab5de3f7cfc0952c1a9b653e5deuvd, Patch
    • git.kernel.orgstable/c/cc624b3d2be13297100539b64ad950695188e046euvd, Patch
    • git.kernel.orgstable/c/682d8accf0d83a871e8c327b95c81f53902c922beuvd, Patch
    • git.kernel.orgstable/c/07704bbf36f57e4379e4cadf96410dab14621e3beuvd, Patch
    • git.kernel.orgstable/c/183aa0de0f680496b9feb85c9d182681ad4600ddeuvd
    • git.kernel.orgstable/c/62fcb273fbee5b2a0e7ed41cc914c8d7d1a5d285euvd
    • git.kernel.orgstable/c/327f8e730e3c65ec97df9d3b07de66aeb3dc932deuvd

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. Record modifiedLinux

      Show 24 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Referenceadded
      —
      https://git.kernel.org/stable/c/07704bbf36f57e4379e4cadf96410dab14621e3b
      Referenceadded
      —
      https://git.kernel.org/stable/c/183aa0de0f680496b9feb85c9d182681ad4600dd
      Referenceadded
      —
      https://git.kernel.org/stable/c/327f8e730e3c65ec97df9d3b07de66aeb3dc932d
      Referenceadded
      —
      https://git.kernel.org/stable/c/62fcb273fbee5b2a0e7ed41cc914c8d7d1a5d285
      Referenceadded
      —
      https://git.kernel.org/stable/c/67cfd14074cdafab5de3f7cfc0952c1a9b653e5d
      Referenceadded
      —
      https://git.kernel.org/stable/c/682d8accf0d83a871e8c327b95c81f53902c922b
      Referenceadded
      —
      https://git.kernel.org/stable/c/cc624b3d2be13297100539b64ad950695188e046
      Referenceadded
      —
      https://git.kernel.org/stable/c/e103f98f6615ed2934e9cf340654f0cad9eb8a8a
      Referenceadded
      —
      https://git.kernel.org/stable/c/f856f4b6efd51be7950e4b84c06cd961961ca41c
      Referenceremoved
      https://git.kernel.org/stable/c/07704bbf36f57e4379e4cadf96410dab14621e3b
      —
      Referenceremoved
      https://git.kernel.org/stable/c/183aa0de0f680496b9feb85c9d182681ad4600dd
      —
      Referenceremoved
      https://git.kernel.org/stable/c/327f8e730e3c65ec97df9d3b07de66aeb3dc932d
      —
      Referenceremoved
      https://git.kernel.org/stable/c/62fcb273fbee5b2a0e7ed41cc914c8d7d1a5d285
      —
      Referenceremoved
      https://git.kernel.org/stable/c/67cfd14074cdafab5de3f7cfc0952c1a9b653e5d
      —
      Referenceremoved
      https://git.kernel.org/stable/c/682d8accf0d83a871e8c327b95c81f53902c922b
      —
      Referenceremoved
      https://git.kernel.org/stable/c/cc624b3d2be13297100539b64ad950695188e046
      —
      Referenceremoved
      https://git.kernel.org/stable/c/e103f98f6615ed2934e9cf340654f0cad9eb8a8a
      —
      Referenceremoved
      https://git.kernel.org/stable/c/f856f4b6efd51be7950e4b84c06cd961961ca41c
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/07704bbf36f57e4379e4cadf96410dab14621e3b Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/67cfd14074cdafab5de3f7cfc0952c1a9b653e5d Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/682d8accf0d83a871e8c327b95c81f53902c922b Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/cc624b3d2be13297100539b64ad950695188e046 Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/e103f98f6615ed2934e9cf340654f0cad9eb8a8a Types: Patch
      —
      Reference typeremoved
      https://git.kernel.org/stable/c/f856f4b6efd51be7950e4b84c06cd961961ca41c Types: Patch
      —

      Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    2. Record modifiedCISA ADP

      CISA assessment (SSVC): exploitation: none known, automatable: no

      Show the original change
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      SSVC assessmentadded
      —
      {"id":"CVE-2026-31619","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"version":"2.0.3","timestamp":"2026-11-06T15:22:46.214544Z"}

      Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

    One NVD translation into another language is hidden.

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    Badge preview for CVE-2026-31619
    <a href="https://intel.neosec.eu/en/cve/CVE-2026-31619"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-31619.svg?lang=en" alt="CVE-2026-31619 – NEOSEC Intel" height="20"></a>