CVE-2026-7270 (GCVE-0-2026-7270)
Vulnerability from cvelistv5
Published
2026-04-30 07:02
Modified
2026-05-10 06:55
CWE
  • CWE-783 - Operator Precedence Logic Error
Summary
An operator precedence bug in the kernel results in a scenario where a buffer overflow causes attacker-controlled data to overwrite adjacent execve(2) argument buffers. The bug may be exploitable by an unprivileged user to obtain superuser privileges.
Impacted products
Vendor Product Version
FreeBSD FreeBSD Version: 15.0-RELEASE
Version: 14.4-RELEASE
Version: 14.3-RELEASE
Version: 13.5-RELEASE
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-7270",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-30T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-01T03:55:53.412Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-10T06:55:17.771Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://blog.calif.io/p/cve-2026-7270-how-i-get-root-on-freebsd"
          },
          {
            "url": "https://news.ycombinator.com/item?id=48077971"
          }
        ],
        "title": "CVE Program Container",
        "x_generator": {
          "engine": "ADPogram 0.0.1"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "kernel"
          ],
          "product": "FreeBSD",
          "vendor": "FreeBSD",
          "versions": [
            {
              "lessThan": "p7",
              "status": "affected",
              "version": "15.0-RELEASE",
              "versionType": "release"
            },
            {
              "lessThan": "p3",
              "status": "affected",
              "version": "14.4-RELEASE",
              "versionType": "release"
            },
            {
              "lessThan": "p12",
              "status": "affected",
              "version": "14.3-RELEASE",
              "versionType": "release"
            },
            {
              "lessThan": "p13",
              "status": "affected",
              "version": "13.5-RELEASE",
              "versionType": "release"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Ryan Austin of Calif.io"
        }
      ],
      "datePublic": "2026-04-29T19:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An operator precedence bug in the kernel results in a scenario where a buffer overflow causes attacker-controlled data to overwrite adjacent execve(2) argument buffers.\n\nThe bug may be exploitable by an unprivileged user to obtain superuser privileges."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-783",
              "description": "CWE-783: Operator Precedence Logic Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-30T07:02:48.276Z",
        "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
        "shortName": "freebsd"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:13.exec.asc"
        }
      ],
      "title": "Local privilege escalation via execve()",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
    "assignerShortName": "freebsd",
    "cveId": "CVE-2026-7270",
    "datePublished": "2026-04-30T07:02:48.276Z",
    "dateReserved": "2026-04-28T05:26:31.296Z",
    "dateUpdated": "2026-05-10T06:55:17.771Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://blog.calif.io/p/cve-2026-7270-how-i-get-root-on-freebsd\"}, {\"url\": \"https://news.ycombinator.com/item?id=48077971\"}], \"x_generator\": {\"engine\": \"ADPogram 0.0.1\"}, \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-05-10T06:55:17.771Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-7270\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-30T14:08:41.159935Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-30T13:07:51.669Z\"}}], \"cna\": {\"title\": \"Local privilege escalation via execve()\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Ryan Austin of Calif.io\"}], \"affected\": [{\"vendor\": \"FreeBSD\", \"modules\": [\"kernel\"], \"product\": \"FreeBSD\", \"versions\": [{\"status\": \"affected\", \"version\": \"15.0-RELEASE\", \"lessThan\": \"p7\", \"versionType\": \"release\"}, {\"status\": \"affected\", \"version\": \"14.4-RELEASE\", \"lessThan\": \"p3\", \"versionType\": \"release\"}, {\"status\": \"affected\", \"version\": \"14.3-RELEASE\", \"lessThan\": \"p12\", \"versionType\": \"release\"}, {\"status\": \"affected\", \"version\": \"13.5-RELEASE\", \"lessThan\": \"p13\", \"versionType\": \"release\"}], \"defaultStatus\": \"unknown\"}], \"datePublic\": \"2026-04-29T19:00:00.000Z\", \"references\": [{\"url\": \"https://security.freebsd.org/advisories/FreeBSD-SA-26:13.exec.asc\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An operator precedence bug in the kernel results in a scenario where a buffer overflow causes attacker-controlled data to overwrite adjacent execve(2) argument buffers.\\n\\nThe bug may be exploitable by an unprivileged user to obtain superuser privileges.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-783\", \"description\": \"CWE-783: Operator Precedence Logic Error\"}]}], \"providerMetadata\": {\"orgId\": \"63664ac6-956c-4cba-a5d0-f46076e16109\", \"shortName\": \"freebsd\", \"dateUpdated\": \"2026-04-30T07:02:48.276Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-7270\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-10T06:55:17.771Z\", \"dateReserved\": \"2026-04-28T05:26:31.296Z\", \"assignerOrgId\": \"63664ac6-956c-4cba-a5d0-f46076e16109\", \"datePublished\": \"2026-04-30T07:02:48.276Z\", \"assignerShortName\": \"freebsd\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…