FKIE_CVE-2026-7270

Vulnerability from fkie_nvd - Published: 2026-04-30 07:16 - Updated: 2026-05-10 08:16
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
References
secteam@freebsd.orghttps://security.freebsd.org/advisories/FreeBSD-SA-26:13.exec.ascVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://blog.calif.io/p/cve-2026-7270-how-i-get-root-on-freebsd
af854a3a-2127-422b-91ae-364da2661108https://news.ycombinator.com/item?id=48077971
Impacted products
Vendor Product Version
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 13.5
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.3
freebsd freebsd 14.4
freebsd freebsd 14.4
freebsd freebsd 14.4
freebsd freebsd 14.4
freebsd freebsd 15.0
freebsd freebsd 15.0
freebsd freebsd 15.0
freebsd freebsd 15.0
freebsd freebsd 15.0
freebsd freebsd 15.0
freebsd freebsd 15.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:-:*:*:*:*:*:*",
              "matchCriteriaId": "947F561E-AD65-43B9-94C1-3109A3D35248",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:beta3:*:*:*:*:*:*",
              "matchCriteriaId": "4216D505-95A5-4FCC-8B9A-26FCD32B0445",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p1:*:*:*:*:*:*",
              "matchCriteriaId": "3D1987F1-1E08-4B28-8D16-D25A091D99ED",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p10:*:*:*:*:*:*",
              "matchCriteriaId": "4C859EE2-59C0-4234-BFF0-7794AC4956DD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p11:*:*:*:*:*:*",
              "matchCriteriaId": "D1CEB391-5FA3-4FFD-9279-113093DD500D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p12:*:*:*:*:*:*",
              "matchCriteriaId": "EE54A637-BD2A-42F2-A155-CF3D4292B32D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p2:*:*:*:*:*:*",
              "matchCriteriaId": "BEC1E8A0-0402-45F1-938D-FEFDCFC3E747",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p3:*:*:*:*:*:*",
              "matchCriteriaId": "D94457D6-738F-4ABB-BD46-F2B621531FE2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p4:*:*:*:*:*:*",
              "matchCriteriaId": "8C38CB56-B80C-4D1B-9267-16E8F985B170",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p5:*:*:*:*:*:*",
              "matchCriteriaId": "13DF1E38-5E8D-42FF-A4C5-092300864F3E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p6:*:*:*:*:*:*",
              "matchCriteriaId": "83A86F81-0965-4600-835A-496756137998",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p7:*:*:*:*:*:*",
              "matchCriteriaId": "987E31A4-7E21-471E-A3EA-4E53FFDB3DFB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p8:*:*:*:*:*:*",
              "matchCriteriaId": "9FBFE8B3-DC7C-4394-B062-C40E201EC059",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.5:p9:*:*:*:*:*:*",
              "matchCriteriaId": "563C1D65-625D-43FC-A7A0-75B1E2163C40",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:-:*:*:*:*:*:*",
              "matchCriteriaId": "9DC7C54E-58AF-4ADE-84AF-0EF0F325E20E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p1:*:*:*:*:*:*",
              "matchCriteriaId": "D3D22B8C-36CF-4800-9673-0B0240558BDD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p10:*:*:*:*:*:*",
              "matchCriteriaId": "7296F5AA-F8C1-4277-A4EE-C2B24073A320",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p11:*:*:*:*:*:*",
              "matchCriteriaId": "C30E4A9C-0594-4F40-92B3-26CB9AA85AE9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p2:*:*:*:*:*:*",
              "matchCriteriaId": "242FA2A8-5D7D-4617-A411-2651FF3A3E4C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p3:*:*:*:*:*:*",
              "matchCriteriaId": "40573F60-F3B7-4AEC-846A-B08E5B7D9D00",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p4:*:*:*:*:*:*",
              "matchCriteriaId": "1FB832CE-0A98-44A2-8BAC-CD38A64279B6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p5:*:*:*:*:*:*",
              "matchCriteriaId": "9A785F8E-C218-41AE-8D57-BF06DDAEF7CB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p6:*:*:*:*:*:*",
              "matchCriteriaId": "C3909FDD-B2A2-45B6-A40B-1D303A717F15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p7:*:*:*:*:*:*",
              "matchCriteriaId": "720597A2-F181-46E1-8A0D-097E17ADC4FB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p8:*:*:*:*:*:*",
              "matchCriteriaId": "DC8A75D0-148A-427A-9783-45477EABED21",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.3:p9:*:*:*:*:*:*",
              "matchCriteriaId": "F5D39FC9-6DBA-46C8-BB80-A6188E6A8527",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.4:-:*:*:*:*:*:*",
              "matchCriteriaId": "8F3856BE-666F-4FA1-A6AD-FE179CEBF1E4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:*",
              "matchCriteriaId": "D9CC0037-3282-42C3-80D8-F6C1D43B9332",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:*",
              "matchCriteriaId": "1EADA828-3C20-43C0-A0CA-3AC7D7F23DBD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:14.4:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "0342A715-E211-4AF6-97ED-32EB9EBB947D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:15.0:-:*:*:*:*:*:*",
              "matchCriteriaId": "368CFE5D-C5C2-42AF-AAF4-28DFE1A59C3B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*",
              "matchCriteriaId": "AA4AAA57-70A7-4717-ACF2-A253E757FF2C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*",
              "matchCriteriaId": "E24ABFA6-4D12-4DE5-832B-438502C7D188",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*",
              "matchCriteriaId": "C1C9869C-494B-4628-9AA3-4AA5B989C377",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*",
              "matchCriteriaId": "002AA2FE-C7BA-471A-9434-0E56A878ACBF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*",
              "matchCriteriaId": "B187670D-E3A2-4A0D-A653-982F8B447E78",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*",
              "matchCriteriaId": "047E7EE9-FB51-4CF2-A8BE-484BFD819565",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-7270",
  "lastModified": "2026-05-10T08:16:08.693",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-30T07:16:41.710",
  "references": [
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:13.exec.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://blog.calif.io/p/cve-2026-7270-how-i-get-root-on-freebsd"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://news.ycombinator.com/item?id=48077971"
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-783"
        }
      ],
      "source": "secteam@freebsd.org",
      "type": "Secondary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.