CVE-2026-43048

Full vulnerability record from the local CVENow database.
Description

In the Linux kernel, the following vulnerability has been resolved: HID: core: Mitigate potential OOB by removing bogus memset() The memset() in hid_report_raw_event() has the good intention of clearing out bogus data by zeroing the area from the end of the incoming data string to the assumed end of the buffer. However, as we have previously seen, doing so can easily result in OOB reads and writes in the subsequent thread of execution. The current suggestion from one of the HID maintainers is to remove the memset() and simply return if the incoming event buffer size is not large enough to fill the associated report. Suggested-by Benjamin Tissoires <[email protected]> [bentiss: changed the return value]
Severity
HIGH
CVSS score
8.8 (v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-05-01 15:16:51.193000
Last modified
2026-10-30 13:18:44.967000
View original CVE JSON
{
  "id": "CVE-2026-43048",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-05-01T15:16:51.193",
  "lastModified": "2026-10-30T13:18:44.967",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: Mitigate potential OOB by removing bogus memset()\n\nThe memset() in hid_report_raw_event() has the good intention of\nclearing out bogus data by zeroing the area from the end of the incoming\ndata string to the assumed end of the buffer.  However, as we have\npreviously seen, doing so can easily result in OOB reads and writes in\nthe subsequent thread of execution.\n\nThe current suggestion from one of the HID maintainers is to remove the\nmemset() and simply return if the incoming event buffer size is not\nlarge enough to fill the associated report.\n\nSuggested-by Benjamin Tissoires <[email protected]>\n\n[bentiss: changed the return value]"
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/hid/hid-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "cd6104572bca9e4afe0dcdb8ecd65ef90b01297b",
              "lessThan": "ad4316edbc63949094edeee538517dd689df7b24",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cd6104572bca9e4afe0dcdb8ecd65ef90b01297b",
              "lessThan": "218b93b7e284de1aa40a53f8f130f84f7da38858",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cd6104572bca9e4afe0dcdb8ecd65ef90b01297b",
              "lessThan": "b37e6019fe420335d884e30535549a25f084e00d",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cd6104572bca9e4afe0dcdb8ecd65ef90b01297b",
              "lessThan": "8f71034649738fdeb6859b8d6cddf132024fac06",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cd6104572bca9e4afe0dcdb8ecd65ef90b01297b",
              "lessThan": "bd6e1d0230cca9575f5d118148f51e2a56b5373f",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cd6104572bca9e4afe0dcdb8ecd65ef90b01297b",
              "lessThan": "0a3fe972a7cb1404f693d6f1711f32bc1d244b1c",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/hid/hid-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "2.6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "2.6.15",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.191",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.114",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.22",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.19.12",
              "lessThanOrEqual": "6.19.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.0",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-16T15:13:57.851885Z",
          "id": "CVE-2026-43048",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.6.15.1",
              "versionEndExcluding": "6.18.22",
              "matchCriteriaId": "8DB63A07-5728-46DE-A02B-0ED46CD9370B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.19",
              "versionEndExcluding": "6.19.12",
              "matchCriteriaId": "0A2B9540-02D5-41B4-B16A-82AF66FD4F36"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.15:-:*:*:*:*:*:*",
              "matchCriteriaId": "C7623CAC-67FF-477D-9F80-F383014C82DC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.15:rc6:*:*:*:*:*:*",
              "matchCriteriaId": "8C6FCAC4-B6C6-4125-B3AC-F30407AA7738"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:2.6.15:rc7:*:*:*:*:*:*",
              "matchCriteriaId": "707ECC75-65B6-4B02-BE85-A4804549A2DD"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0a3fe972a7cb1404f693d6f1711f32bc1d244b1c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/218b93b7e284de1aa40a53f8f130f84f7da38858",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8f71034649738fdeb6859b8d6cddf132024fac06",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/ad4316edbc63949094edeee538517dd689df7b24",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b37e6019fe420335d884e30535549a25f084e00d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bd6e1d0230cca9575f5d118148f51e2a56b5373f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    }
  ]
}