« Volver al listado

CVE-2026-46142

Estado: En análisisMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

net: libwx: fix VF illegal register access

Register WX_CFG_PORT_ST is a PF restricted register. When a VF is initialized, attempting to read this register triggers an illegal register access, which lead to a system hang.

When the device is VF, the bus function ID can be obtained directly from the PCI_FUNC(pdev->devfn).

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-46142",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "d4187ec2641061748480cdc944fd07653fad50d5",
              "lessThan": "d3bd8040497968f6f5470018724ef7b0df92f707",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e",
              "lessThan": "f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a04ea57aae375bdda1cb57034d8bcbb351e1f973",
              "lessThan": "33c5bb50b9c40e8451e6aec4487a31d794b98d92",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a04ea57aae375bdda1cb57034d8bcbb351e1f973",
              "lessThan": "68a007a701bc06fa426507c551ef12514f2e721d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a04ea57aae375bdda1cb57034d8bcbb351e1f973",
              "lessThan": "694de316f607fe2473d52ca0707e3918e72c1562",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "93e52b75f11a8f39b22993ae315b5b9a6b2668a3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6.6.117",
              "lessThan": "6.6.140",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.12.58",
              "lessThan": "6.12.88",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.17.8",
              "lessThan": "6.18",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_hw.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_hw.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-05-28T10:16:29.790",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: libwx: fix VF illegal register access\n\nRegister WX_CFG_PORT_ST is a PF restricted register. When a VF is\ninitialized, attempting to read this register triggers an illegal\nregister access, which lead to a system hang.\n\nWhen the device is VF, the bus function ID can be obtained directly from\nthe PCI_FUNC(pdev->devfn)."
    }
  ],
  "lastModified": "2026-06-24T17:07:50.287",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F383A2C1-6444-4D5F-AC88-11F57C67C624",
              "versionEndExcluding": "6.6.140",
              "versionStartIncluding": "6.6.117"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F903A5AC-BF29-4FC6-89A5-C37D434AC69C",
              "versionEndExcluding": "6.12.88",
              "versionStartIncluding": "6.12.58"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "57D56998-E0C3-4F58-BBF0-B20D1B4322C8",
              "versionEndExcluding": "6.18",
              "versionStartIncluding": "6.17.8"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F39F06A9-4AEA-437A-A2C4-79F93464CA8D",
              "versionEndExcluding": "6.18.30",
              "versionStartIncluding": "6.18.1"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D0893CA7-9AE6-4DFE-AC75-48967D73AD8E",
              "versionEndExcluding": "7.0.7",
              "versionStartIncluding": "6.19"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.18:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DCE57113-2223-4308-A0F2-5E6ECFBB3C23"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2545FB83-C4A6-4F62-9ED1-09F75D2E3C78"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc6:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E955EC5D-4684-4B5D-AE4D-F2BF9ADDBA1D"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc7:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "38C4D89F-9A13-4D29-8645-C9785C142C07"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}