CVE-2026-46203

Description

In the Linux kernel, the following vulnerability has been resolved: spi: cadence-quadspi: fix unclocked access on unbind Make sure that the controller is runtime resumed before disabling it during driver unbind to avoid an unclocked register access. This issue was flagged by Sashiko when reviewing a controller deregistration fix.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: high
CVSS score: 7.1 / 10
CVSS vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Effective score: 7.1 / 10 HIGH source: CNA overview
CWE(s): —
Reserved: 2026-05-13
Published: 2026-05-28 09:40 UTC
Last updated: 2026-05-28 09:40 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/46xxx/CVE-2026-46203.json
Linked Threat: CVE-2026-46203 — CVE-2026-46203

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-05-28 10:16:35 UTC
NVD last modified: 2026-06-19 13:16:35 UTC
NVD CVSS v3.1: 7.1 / 10 HIGH source: nvd@nist.gov
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 5.2 / 10
EPSS score: 0.0013 (probability of exploitation in next 30 days)
EPSS percentile: 3.09% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

NVD-assigned CWE(s): CWE-125 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-32830
Assigner: Linux
Published: May 28, 2026, 9:40:20 AM
Updated: Jun 19, 2026, 12:00:01 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.1300
Vendors: Linux
Products: Linux (patch: 7.1)

Linux (patch: 7.0.9)

Linux (patch: 6.12.94)

Linux (0578a6dbfe7514db7134501cf93acc21cf13e479 <d67a5311818b3e6481a1e4293c9337ebfee73111)

Linux (patch: 0)

Linux (0578a6dbfe7514db7134501cf93acc21cf13e479 <2e7cd62c37f51823c2bb79de1d4d76d0c1678c7e)

Linux (6.7)

Linux (patch: 6.18.36)

Linux (0578a6dbfe7514db7134501cf93acc21cf13e479 <63a9f6012f453578898c9fcc13c8452a8651104e)

Linux (0578a6dbfe7514db7134501cf93acc21cf13e479 <233db2cb14db8b1935dda52a6affd97276462b82)
Aliases: GHSA-j454-pvhh-fcmq

ENISA description: In the Linux kernel, the following vulnerability has been resolved: spi: cadence-quadspi: fix unclocked access on unbind Make sure that the controller is runtime resumed before disabling it during driver unbind to avoid an unclocked register access. This issue was flagged by Sashiko when reviewing a controller deregistration fix.

EUVD references (4)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`0578a6dbfe7514db7134501cf93acc21cf13e479` (affected), `0578a6dbfe7514db7134501cf93acc21cf13e479` (affected)	—
Linux	Linux	`6.7` (affected), `0` (unaffected), `7.0.9` (unaffected), `7.1-rc2` (unaffected)	—

Affected products — CPE 2.3 (2) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

MITRE references (2) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (5)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

https://nvd.nist.gov/vuln/detail/CVE-2026-46203 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-46203 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org
https://git.kernel.org/stable/c/d67a5311818b3e6481a1e4293c9337ebfee73111 tenable:git.kernel.org
https://git.kernel.org/stable/c/233db2cb14db8b1935dda52a6affd97276462b82 tenable:git.kernel.org

NVD-tagged references (4)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://git.kernel.org/stable/c/233db2cb14db8b1935dda52a6affd97276462b82 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/d67a5311818b3e6481a1e4293c9337ebfee73111 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/2e7cd62c37f51823c2bb79de1d4d76d0c1678c7e 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/63a9f6012f453578898c9fcc13c8452a8651104e 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remediations (17)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

RHSB-2026-004 Process Exit Race Condition - Linux Kernel (CVE-2026 ...

web:access.redhat.com

Applying the kernel fix , when available, is the only comprehensive remediation . Option 1: Admin-only scope Setting ptrace_scope to 2 restricts ptrace attach to processes with CAP_SYS_PTRACE. This blocks many currently known exploitation paths, but other paths that do not rely on ptrace may exist. This is suitable for most production environments.

2026-06-03 23:59 UTC
Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...

web:cybersecuritynews.com

Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

2026-06-03 23:59 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-06-03 23:59 UTC
Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...

web:support.servicenow.com

Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

2026-06-03 23:59 UTC
Investigating a New Click-Fix Variant - The Hacker News

web:thehackernews.com

New ClickFix variant maps WebDAV drive to run trojanized WorkFlowy app, enabling stealth C2 beacon and payload delivery.

2026-06-03 23:59 UTC
Critical Patches Issued for Microsoft Products, April 14, 2026

web:www.cisecurity.org

<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...

2026-06-03 23:59 UTC
April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike

web:www.crowdstrike.com

Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

2026-06-03 23:59 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-06-03 23:59 UTC
Patch Tuesday May 2026 - PDQ

web:www.pdq.com

May 2026 Patch Tuesday is here, and PDQ is back with another recap. Will we see another month of increased CVE volume? Is AI to blame? Dive in to learn more.

2026-06-03 23:59 UTC
Patch Tuesday June 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-06-03 23:59 UTC
Microsoft and Adobe Patch Tuesday, May 2026 Security Update Review

web:blog.qualys.com

May 2026's Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy…

2026-06-19 02:28 UTC
Adobe Security Bulletin

web:helpx.adobe.com

Adobe has released a security update for Adobe Acrobat and Reader for Windows and macOS. This update addresses a critical vulnerability. Successful exploitation could lead to arbitrary code execution. Adobe is aware of CVE - 2026 -34621 being exploited in the wild.

2026-06-19 02:28 UTC
Adobe Security Bulletins and Advisories | Security

web:helpx.adobe.com

This page contains important information regarding security vulnerabilities that could affect specific versions of Adobe products. Use this information to take the prescribed corrective actions.

2026-06-19 02:28 UTC
CISA Adds Two Known Exploited Vulnerabilities to Catalog

web:www.cisa.gov

BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures ( CVEs ) listed in CISA's Known Exploited Vulnerabilities (KEV) catalog on publicly exposed assets that grant total control of ...

2026-06-19 02:28 UTC
Microsoft Technical Security Notifications

web:www.microsoft.com

Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.

2026-06-19 02:28 UTC
Oracle Critical Security Patch Update Advisory - May 2026

web:www.oracle.com

This Critical Security Patch Update contains 35 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Security Patch Update and other Oracle Software Security Assurance activities is located at May 2026 Critical Security Patch Update: Executive Summary and Analysis.

2026-06-19 02:28 UTC
Patch Tuesday - June 2026 - Rapid7

web:www.rapid7.com

Microsoft is publishing 200 vulnerabilities on June 2026 Patch Tuesday, including an HTTP/2 denial of service vulnerability and an elevation of privilege vulnerability in PowerToys.

2026-06-19 02:28 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-46203.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-cadence-quadspi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d67a5311818b3e6481a1e4293c9337ebfee73111",
              "status": "affected",
              "version": "0578a6dbfe7514db7134501cf93acc21cf13e479",
              "versionType": "git"
            },
            {
              "lessThan": "233db2cb14db8b1935dda52a6affd97276462b82",
              "status": "affected",
              "version": "0578a6dbfe7514db7134501cf93acc21cf13e479",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-cadence-quadspi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.9",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc2",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: cadence-quadspi: fix unclocked access on unbind\n\nMake sure that the controller is runtime resumed before disabling it\nduring driver unbind to avoid an unclocked register access.\n\nThis issue was flagged by Sashiko when reviewing a controller\nderegistration fix."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T09:40:20.631Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d67a5311818b3e6481a1e4293c9337ebfee73111"
        },
        {
          "url": "https://git.kernel.org/stable/c/233db2cb14db8b1935dda52a6affd97276462b82"
        }
      ],
      "title": "spi: cadence-quadspi: fix unclocked access on unbind",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46203",
    "datePublished": "2026-05-28T09:40:20.631Z",
    "dateReserved": "2026-05-13T15:03:33.104Z",
    "dateUpdated": "2026-05-28T09:40:20.631Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}