CVE-2026-58826

Full vulnerability record from the local CVENow database.

Description

In ksys_unshare of fork.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Severity

HIGH

CVSS score

8.4 (v3.1)

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-02 20:17:47.573000

Last modified

2026-11-02 21:17:34.053000

View original CVE JSON

{
  "id": "CVE-2026-58826",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-02T20:17:47.573",
  "lastModified": "2026-11-02T21:17:34.053",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In ksys_unshare of fork.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Google",
          "product": "Android",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "Android kernel",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-02T20:57:15.712422Z",
          "id": "CVE-2026-58826",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://android.googlesource.com/kernel/common/+/009c5006c969826d37a2c5fc2721a7bb20d72555",
      "source": "[email protected]"
    },
    {
      "url": "https://android.googlesource.com/kernel/common/+/13beada2dac38c2d7303f1700aa16fb5053b919d",
      "source": "[email protected]"
    },
    {
      "url": "https://android.googlesource.com/kernel/common/+/efe16a3021b9f95eb1cb83e98d0d1db9bff94ce4",
      "source": "[email protected]"
    },
    {
      "url": "https://android.googlesource.com/kernel/common/+/f7d26609785ce56170645d56f306db38e8ba277a",
      "source": "[email protected]"
    },
    {
      "url": "https://source.android.com/docs/security/bulletin/2026/2026-11-01",
      "source": "[email protected]"
    }
  ]
}