CVE-2026-46122

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: b43: enforce bounds check on firmware key index in b43_rx() The firmware-controlled key index in b43_rx() can exceed the dev->key[] array size (58 entries). The existing B43_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read. Make the B43_WARN_ON check enforcing by dropping the frame when the firmware returns an invalid key index.

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
MSRC score: 7.1 / 10 HIGH MS rating: Moderate
CWE(s): —
Reserved: 2026-05-13
Published: 2026-05-28 09:35 UTC
Last updated: 2026-06-01 16:18 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/46xxx/CVE-2026-46122.json
Linked Threat: CVE-2026-46122 — CVE-2026-46122

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 10:16:27 UTC
NVD last modified: 2026-06-24 16:51:28 UTC
NVD CVSS v3.1: 7.8 / 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:H/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0013 (probability of exploitation in next 30 days)
EPSS percentile: 2.95% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27

NVD-assigned CWE(s): CWE-129 (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-2026-32881
Assigner: Linux
Published: May 28, 2026, 9:35:37 AM
Updated: Jun 14, 2026, 5:56:03 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.1300
Vendors: Linux
Products: Linux (patch: 0)

Linux (e4d6b7951812d98417feb10784e400e253caf633 <1f4f78bf8549e6ac4f04fba4176854f3a6e0c332)

Linux (patch: 5.10.258)

Linux (patch: 5.15.209)

Linux (e4d6b7951812d98417feb10784e400e253caf633 <3157ad40b084a8f3932da2641749ab45e99b933e)

Linux (e4d6b7951812d98417feb10784e400e253caf633 <219ba67e69e49681e48c822d6eaafb5def032f34)

Linux (e4d6b7951812d98417feb10784e400e253caf633 <765709720e6af9a178abc40244a8d1aa39ac4e71)

Linux (e4d6b7951812d98417feb10784e400e253caf633 <135cb49c9a42a02cceeac7b49ec03e267f7ed6d6)

Linux (patch: 6.6.140)

Linux (e4d6b7951812d98417feb10784e400e253caf633 <d7029879bafdac2006c67553807d122283dc6cbf)

Linux (patch: 6.12.88)

Linux (2.6.24)

Linux (patch: 7.0.7)

Linux (patch: 7.1)

Linux (patch: 6.1.175)

Linux (patch: 6.18.30)

Linux (e4d6b7951812d98417feb10784e400e253caf633 <c3d7b90dc95020cd9282c4630e402fe224f7644e)

Linux (e4d6b7951812d98417feb10784e400e253caf633 <1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14)
Aliases: GHSA-pq22-w363-wp5p

ENISA description: In the Linux kernel, the following vulnerability has been resolved: wifi: b43: enforce bounds check on firmware key index in b43_rx() The firmware-controlled key index in b43_rx() can exceed the dev->key[] array size (58 entries). The existing B43_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read. Make the B43_WARN_ON check enforcing by dropping the frame when the firmware returns an invalid key index.

EUVD references (8)

Microsoft Security Response Center MSRC

Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-08-12 01:09 UTC (source: CVRF).

MS severity: Moderate
MS CVSS base score: 7.1 / 10 (temporal 6.5)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U
Release: 2026-May

Microsoft remediations / KB articles (2)

CBL-Mariner Releases — Vendor Fix / Security Update (fixed build 6.6.141.1-1)
https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade — None Available / CBL-Mariner Releases

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`e4d6b7951812d98417feb10784e400e253caf633` (affected), `e4d6b7951812d98417feb10784e400e253caf633` (affected), `e4d6b7951812d98417feb10784e400e253caf633` (affected), `e4d6b7951812d98417feb10784e400e253caf633` (affected), `e4d6b7951812d98417feb10784e400e253caf633` (affected), `e4d6b7951812d98417feb10784e400e253caf633` (affected), `e4d6b7951812d98417feb10784e400e253caf633` (affected), `e4d6b7951812d98417feb10784e400e253caf633` (affected)	—
Linux	Linux	`2.6.24` (affected), `0` (unaffected), `5.10.258` (unaffected), `5.15.209` (unaffected), `6.1.175` (unaffected), `6.6.140` (unaffected), `6.12.88` (unaffected), `6.18.30` (unaffected), `7.0.7` (unaffected), `7.1-rc3` (unaffected)	—

Affected products — CPE 2.3 (3) 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:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*

Vendor references (8)

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

Web references (13)

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

MSRC update guide: CVE-2026-46122 msrc
None Available msrc
https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332 tenable:git.kernel.org
https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34 tenable:git.kernel.org
https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e tenable:git.kernel.org
https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71 tenable:git.kernel.org
https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e tenable:git.kernel.org
https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf tenable:git.kernel.org
https://nvd.nist.gov/vuln/detail/CVE-2026-46122 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-46122 tenable:www.cve.org
https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6 tenable:git.kernel.org
https://www.first.org/epss/ tenable:www.first.org
https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14 tenable:git.kernel.org

NVD-tagged references (8)

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/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch

Remediations (16)

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

Security Updates - Red Hat Customer Portal

web:access.redhat.com

Learn about our open source products, services, and company. You are here

2026-06-04 00:01 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.

2026-06-04 00:01 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-06-04 00:01 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.

2026-06-04 00:01 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 ...

2026-06-04 00:01 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.

2026-06-04 00:01 UTC
Oracle's first monthly patch release fixes 35 flaws, including 11 rated ...

web:www.csoonline.com

Oracle has released the first security fixes in its new monthly Critical Security Patch Update (CSPU) cycle, designed to address urgent vulnerabilities that can't wait for the company's ...

2026-06-04 00:01 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.

2026-06-04 00:01 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.

2026-06-04 00:01 UTC
VirusTotal - Home

web:www.virustotal.com

VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.

2026-06-04 00:01 UTC
Security Advisories and Bulletins | Microsoft Learn

web:learn.microsoft.com

In this library you will find the following security documents that have been released by the Microsoft Security Response Center (MSRC). The MSRC investigates all reports of security vulnerabilities affecting Microsoft products and services, and releases these documents as part of the ongoing effort to help you manage security risks and help keep your systems protected. Please use the ...

2026-06-19 02:28 UTC
Oracle CPU April 2026: Delayed RUs & First Analysis ¶

web:oradba.ch

On April 21, 2026 , Oracle released the Critical Patch Update (CPU) for April 2026 — 481 new security fixes across the entire Oracle product stack. For Oracle Database, this means another round of mandatory patching. What makes this quarter unusual: several key Release Updates, including 19.31 and 23.26.2, were not available on release day and are delayed by up to a week or more.

2026-06-19 02:28 UTC
SAP Security Patch Day - February 2026

web:support.sap.com

SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the Support Portal and applies patches on priority to protect their SAP landscape. On 10th of February 2026 , SAP security patch day saw the release of 26 new security notes. Further, there was 1 update to ...

2026-06-19 02:28 UTC
CVE: Common Vulnerabilities and Exposures

web:www.cve.org

At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

2026-06-19 02:28 UTC
April 2026 ArcGIS Security Bulletin - Esri

web:www.esri.com

Key highlights Portal for ArcGIS Security 2026 Update 1 Patch Portal for ArcGIS 11.4, 11.5, and 12.0 require a security patch US CISA recommends applying Critical Security patches within 15 days Patch /update resets potentially over-scoped developer credentials Check if your applications/scripts using developer credentials are fully operational after update

2026-06-19 02:28 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 .

2026-06-19 02:28 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-46122.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/b43/xmit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
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            {
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            },
            {
              "lessThan": "c3d7b90dc95020cd9282c4630e402fe224f7644e",
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            },
            {
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        },
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.24"
            },
            {
              "lessThan": "2.6.24",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
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            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
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            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
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            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.1.175",
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                },
                {
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                  "vulnerable": true
                },
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                },
                {
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                  "versionEndExcluding": "6.18.30",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc3",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: b43: enforce bounds check on firmware key index in b43_rx()\n\nThe firmware-controlled key index in b43_rx() can exceed the dev->key[]\narray size (58 entries). The existing B43_WARN_ON is non-enforcing in\nproduction builds, allowing an out-of-bounds read.\n\nMake the B43_WARN_ON check enforcing by dropping the frame when the\nfirmware returns an invalid key index."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-01T16:18:42.468Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e"
        },
        {
          "url": "https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf"
        },
        {
          "url": "https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332"
        }
      ],
      "title": "wifi: b43: enforce bounds check on firmware key index in b43_rx()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46122",
    "datePublished": "2026-05-28T09:35:37.141Z",
    "dateReserved": "2026-05-13T15:03:33.098Z",
    "dateUpdated": "2026-06-01T16:18:42.468Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}