CVE-2026-43476

Description

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() sizeof(num) evaluates to sizeof(size_t) (8 bytes on 64-bit) instead of the intended __be32 element size (4 bytes). Use sizeof(*meas) to correctly match the buffer element type.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: high
CVSS score: 7.8 / 10
CVSS vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Effective score: 7.8 / 10 HIGH source: CNA overview
CWE(s): —
Reserved: 2026-05-01
Published: 2026-05-13 17:08 UTC
Last updated: 2026-05-13 17:08 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/43xxx/CVE-2026-43476.json
Linked Threat: CVE-2026-43476 — CVE-2026-43476

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: 2026-05-13 16:16:50 UTC
NVD last modified: 2026-05-20 17:16:23 UTC
NVD CVSS v3.1: 7.8 / 10 HIGH source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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: 0.0001 (probability of exploitation in next 30 days)
EPSS percentile: 2.55% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

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-2026-30012
Assigner: Linux
Published: May 13, 2026, 3:08:26 PM
Updated: May 20, 2026, 4:08:08 PM
EUVD base score (CVSS 3.1): 7.8 / 10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.0100
Vendors: Linux
Products: Linux (5.14)

Linux (patch: 0)

Linux (patch: 6.12.78)

Linux (patch: 7.0)

Linux (patch: 6.19.9)

Linux (patch: 6.18.19)

Linux (8f3f130852785dac0759843835ca97c3bacc2b10 <90e978ace598567e6e30de79805bddf37cf892ac)

Linux (patch: 6.6.130)

Linux (8f3f130852785dac0759843835ca97c3bacc2b10 <dcdf1e92674efb6692f4ebe189e0aa9fde23a541)

Linux (8f3f130852785dac0759843835ca97c3bacc2b10 <216345f98cae7fcc84f49728c67478ac00321c87)

Linux (patch: 5.15.203)

Linux (patch: 6.1.167)

Linux (8f3f130852785dac0759843835ca97c3bacc2b10 <08881d82f94deaa51800360029908863e5c4c39d)

Linux (8f3f130852785dac0759843835ca97c3bacc2b10 <2a4d111a6a34afb8bb4f118009e7728ed2ec7e10)

Linux (8f3f130852785dac0759843835ca97c3bacc2b10 <9aff2e9c2927ecd9652872a43a0725f101128104)

Linux (8f3f130852785dac0759843835ca97c3bacc2b10 <165f12b40901c6a7aca15796da239726ddcdc5ad)

ENISA description: In the Linux kernel, the following vulnerability has been resolved: iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas() sizeof(num) evaluates to sizeof(size_t) (8 bytes on 64-bit) instead of the intended __be32 element size (4 bytes). Use sizeof(*meas) to correctly match the buffer element type.

EUVD references (7)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`8f3f130852785dac0759843835ca97c3bacc2b10` (affected), `8f3f130852785dac0759843835ca97c3bacc2b10` (affected), `8f3f130852785dac0759843835ca97c3bacc2b10` (affected), `8f3f130852785dac0759843835ca97c3bacc2b10` (affected), `8f3f130852785dac0759843835ca97c3bacc2b10` (affected), `8f3f130852785dac0759843835ca97c3bacc2b10` (affected), `8f3f130852785dac0759843835ca97c3bacc2b10` (affected)	—
Linux	Linux	`5.14` (affected), `0` (unaffected), `5.15.203` (unaffected), `6.1.167` (unaffected), `6.6.130` (unaffected), `6.12.78` (unaffected), `6.18.19` (unaffected), `6.19.9` (unaffected), `7.0` (unaffected)	—

Vendor references (7)

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

MITRE references (7) 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://attackerkb.com/topics/CVE-2026-43476 rapid7:attackerkb.com
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30012 rapid7:euvd.enisa.europa.eu
https://www.first.org/epss/ tenable:www.first.org
https://nvd.nist.gov/vuln/detail/CVE-2026-43476 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-43476 tenable:www.cve.org

NVD-tagged references (7)

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/08881d82f94deaa51800360029908863e5c4c39d 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/165f12b40901c6a7aca15796da239726ddcdc5ad 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/216345f98cae7fcc84f49728c67478ac00321c87 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2a4d111a6a34afb8bb4f118009e7728ed2ec7e10 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/90e978ace598567e6e30de79805bddf37cf892ac 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9aff2e9c2927ecd9652872a43a0725f101128104 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/dcdf1e92674efb6692f4ebe189e0aa9fde23a541 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remediations (14)

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

Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review

web:blog.qualys.com

With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.

2026-05-23 20:55 UTC
CISA Warns of Exploited Microsoft Defender 0-Day Flaws

web:cyberpress.org

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .

2026-05-23 20:55 UTC
Patch Tuesday, May 2026 Edition - Krebs on Security

web:krebsonsecurity.com

Microsoft expects that exploitation is more likely. May's Patch Tuesday is a welcome respite from April, which saw Microsoft fix a near-record 167 security flaws.

2026-05-23 20:55 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.

2026-05-23 20:55 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 ...

2026-05-23 20:55 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 ...

2026-05-23 20:55 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.

2026-05-23 20:55 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.

2026-05-23 20:55 UTC
Windows 11 April 2026 Update tested: What's new, improved and fixed

web:www.windowslatest.com

Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

2026-05-23 20:55 UTC
Patch Tuesday May 2026: Security Updates & CVE Analysis

web:zecurit.com

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

2026-05-23 20:55 UTC
Oracle Critical Patch Update, April 2026 Security Update Review

web:blog.qualys.com

Oracle released its second quarterly edition of this year's Critical Patch Update. The update received patches for 481 security vulnerabilities.

2026-05-26 02:53 UTC
Security Advisory Bulletin 064 | Ubiquiti Community

web:community.ui.com

Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...

2026-05-26 02:53 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-05-26 02:53 UTC
SAP Security Patch Day - May 2026

web:support.sap.com

SAP security Patch Day Bulletin

2026-05-26 02:53 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-43476.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/chemical/sps30_i2c.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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          ],
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          "vendor": "Linux",
          "versions": [
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            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
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              "status": "unaffected",
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              "status": "unaffected",
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            },
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.19",
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            },
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              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.9",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
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      "cpeApplicability": [
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                },
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                },
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                  "vulnerable": true
                }
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()\n\nsizeof(num) evaluates to sizeof(size_t) (8 bytes on 64-bit) instead\nof the intended __be32 element size (4 bytes). Use sizeof(*meas) to\ncorrectly match the buffer element type."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T15:08:26.152Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9aff2e9c2927ecd9652872a43a0725f101128104"
        },
        {
          "url": "https://git.kernel.org/stable/c/08881d82f94deaa51800360029908863e5c4c39d"
        },
        {
          "url": "https://git.kernel.org/stable/c/dcdf1e92674efb6692f4ebe189e0aa9fde23a541"
        },
        {
          "url": "https://git.kernel.org/stable/c/2a4d111a6a34afb8bb4f118009e7728ed2ec7e10"
        },
        {
          "url": "https://git.kernel.org/stable/c/90e978ace598567e6e30de79805bddf37cf892ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/165f12b40901c6a7aca15796da239726ddcdc5ad"
        },
        {
          "url": "https://git.kernel.org/stable/c/216345f98cae7fcc84f49728c67478ac00321c87"
        }
      ],
      "title": "iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43476",
    "datePublished": "2026-05-13T15:08:26.152Z",
    "dateReserved": "2026-05-01T14:12:56.011Z",
    "dateUpdated": "2026-05-13T15:08:26.152Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}