CVE-2026-43081

CVEs › CVE-2026-43081

Description

In the Linux kernel, the following vulnerability has been resolved: net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+ Fix the field masks to match the hardware layout documented in downstream GSI (GSI_V3_0_EE_n_GSI_EE_GENERIC_CMD_*). Notably this fixes a WARN I was seeing when I tried to send "stop" to the MPSS remoteproc while IPA was up.

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: 2026-05-01
Published: 2026-05-06 09:40 UTC
Last updated: 2026-05-12 00:17 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/43xxx/CVE-2026-43081.json
Linked Threat: CVE-2026-43081 — CVE-2026-43081

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: 2026-05-06 10:16:21 UTC
NVD last modified: 2026-05-06 13:08:07 UTC
EPSS score: 0.0002 (probability of exploitation in next 30 days)
EPSS percentile: 6.96% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD / KEV / EPSS data refreshed 2026-05-25 09:09 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

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-2026-27572
Assigner: Linux
Published: May 6, 2026, 7:40:17 AM
Updated: May 11, 2026, 10:17:21 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.0200
Vendors: Linux
Products: Linux (faf0678ec8a0aa9039d8b188d012206abd67dd5c <9709b56d908acc120fe8b4ae250b3c9d749ea832)

Linux (patch: 6.12.83)

Linux (patch: 7.0)

Linux (faf0678ec8a0aa9039d8b188d012206abd67dd5c <2aa50d2c1f631b405849da246043c6f683af7489)

Linux (patch: 6.19.14)

Linux (faf0678ec8a0aa9039d8b188d012206abd67dd5c <bafc45ea30d297002750396d5f10e3018bf2cd60)

Linux (patch: 6.6.136)

Linux (faf0678ec8a0aa9039d8b188d012206abd67dd5c <a7d326dfb13b5a0763eccfd78836fe15199fc499)

Linux (6.4)

Linux (faf0678ec8a0aa9039d8b188d012206abd67dd5c <d1c66396796f23f7201b1addf06f62515035354d)

Linux (patch: 6.18.24)

Linux (patch: 0)

ENISA description: In the Linux kernel, the following vulnerability has been resolved: net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+ Fix the field masks to match the hardware layout documented in downstream GSI (GSI_V3_0_EE_n_GSI_EE_GENERIC_CMD_*). Notably this fixes a WARN I was seeing when I tried to send "stop" to the MPSS remoteproc while IPA was up.

EUVD references (5)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`faf0678ec8a0aa9039d8b188d012206abd67dd5c` (affected), `faf0678ec8a0aa9039d8b188d012206abd67dd5c` (affected), `faf0678ec8a0aa9039d8b188d012206abd67dd5c` (affected), `faf0678ec8a0aa9039d8b188d012206abd67dd5c` (affected), `faf0678ec8a0aa9039d8b188d012206abd67dd5c` (affected)	—
Linux	Linux	`6.4` (affected), `0` (unaffected), `6.6.136` (unaffected), `6.12.83` (unaffected), `6.18.24` (unaffected), `6.19.14` (unaffected), `7.0` (unaffected)	—

Vendor references (5)

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

MITRE references (5) cveawg.mitre.org

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

Web references (3)

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-2026-43081 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-43081 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org

NVD-tagged references (5)

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/2aa50d2c1f631b405849da246043c6f683af7489 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9709b56d908acc120fe8b4ae250b3c9d749ea832 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a7d326dfb13b5a0763eccfd78836fe15199fc499 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bafc45ea30d297002750396d5f10e3018bf2cd60 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d1c66396796f23f7201b1addf06f62515035354d 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remediations (19)

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

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 21:13 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 21:13 UTC
VMware ESXi 8.0 Update 3d Release Notes

web:techdocs.broadcom.com

What's New This release resolves CVE -2025-22224, CVE -2025-22225, and CVE -2025-22226. For more information on these vulnerabilities and their impact on Broadcom products, see VMSA-2025-0004.

2026-05-23 21:13 UTC
CISA orders feds to patch BlueHammer flaw exploited as zero-day

web:www.bleepingcomputer.com

CISA has ordered U.S. federal agencies to patch a Microsoft Defender privilege escalation flaw (dubbed BlueHammer) that has been exploited in zero-day attacks.

2026-05-23 21:13 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 21:13 UTC
Microsoft patches two zero-day flaws in Defender - CSO Online

web:www.csoonline.com

Microsoft released emergency fixes for two zero-day vulnerabilities in the malware protection components of Microsoft Defender. The flaws allow local attackers to gain system-level privileges or ...

2026-05-23 21:13 UTC
2 New Microsoft Defender Zero-Days Exploited—Patch Now ... - Forbes

web:www.forbes.com

Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.

2026-05-23 21:13 UTC
National Vulnerability Database | NIST

web:www.nist.gov

NIST maintains the National Vulnerability Database (NVD), a repository of information on software and hardware flaws that can compromise computer security. This is a key piece of the nation's cybersecurity infrastructure.

2026-05-23 21:13 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 21:13 UTC
Microsoft confirms two major Defender security issues — so update now ...

web:www.techradar.com

CISA confirms two bugs being actively exploited in the wild, as Microsoft releases patches.

2026-05-23 21:13 UTC
Microsoft Patch Tuesday for May 2026 — Snort rules and prominent ...

web:blog.talosintelligence.com

Microsoft has released its monthly security update for May 2026 , which includes 137 vulnerabilities affecting a range of products, including 16 that Microsoft marked as "critical".

2026-06-03 07:49 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 07:49 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.

2026-06-03 07:49 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Access Microsoft Security Response Center's guide to address vulnerabilities, manage security risks, and keep your systems protected with the latest updates.

2026-06-03 07:49 UTC
Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days

web:www.bleepingcomputer.com

Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.

2026-06-03 07:49 UTC
Microsoft confirms patching issues in restricted Windows networks

web:www.bleepingcomputer.com

Microsoft says customers in restricted network environments may encounter Windows Update failures after installing the January 2026 optional non-security preview updates.

2026-06-03 07:49 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 07:49 UTC
Microsoft Defender vulnerabilities are being exploited in the wild

web:www.malwarebytes.com

The KEV catalog tracks vulnerabilities known to be exploited in the wild and sets patch deadlines for Federal Civilian Executive Branch (FCEB) agencies. Five of the added vulnerabilities are quite old by vulnerability standards. Patches were released in 2008, 2009, and 2010. But the Microsoft Defender vulnerabilities are from this year. Those ...

2026-06-03 07:49 UTC
Microsoft Issues Massive Windows Patch for 160+ Bugs ... - TechRepublic

web:www.techrepublic.com

Microsoft's April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company's largest monthly security updates.

2026-06-03 07:49 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-43081.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ipa/reg/gsi_reg-v5.0.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            },
            {
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            },
            {
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.136",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.83",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipa: fix GENERIC_CMD register field masks for IPA v5.0+\n\nFix the field masks to match the hardware layout documented in\ndownstream GSI (GSI_V3_0_EE_n_GSI_EE_GENERIC_CMD_*).\n\nNotably this fixes a WARN I was seeing when I tried to send \"stop\"\nto the MPSS remoteproc while IPA was up."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:17:21.426Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a7d326dfb13b5a0763eccfd78836fe15199fc499"
        },
        {
          "url": "https://git.kernel.org/stable/c/d1c66396796f23f7201b1addf06f62515035354d"
        },
        {
          "url": "https://git.kernel.org/stable/c/bafc45ea30d297002750396d5f10e3018bf2cd60"
        },
        {
          "url": "https://git.kernel.org/stable/c/2aa50d2c1f631b405849da246043c6f683af7489"
        },
        {
          "url": "https://git.kernel.org/stable/c/9709b56d908acc120fe8b4ae250b3c9d749ea832"
        }
      ],
      "title": "net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43081",
    "datePublished": "2026-05-06T07:40:17.159Z",
    "dateReserved": "2026-05-01T14:12:55.983Z",
    "dateUpdated": "2026-05-11T22:17:21.426Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}