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CVE-2025-68811

Estado: AplazadaCrítica (9.8)—

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

svcrdma: use rc_pageoff for memcpy byte offset

svc_rdma_copy_inline_range added rc_curpage (page index) to the page base instead of the byte offset rc_pageoff. Use rc_pageoff so copies land within the current page.

Found by ZeroPath (https://zeropath.com)

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad crítica remota en kernel (AV:N, PR:N, UI:N). Bug de copia de memoria en svc_rdma podría causar corrupción de datos o DoS. T1190 por acceso de red sin requisitos.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-68811",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-68811",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-16T16:28:47.245013Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "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": "8e122582680c6f8acd686a5a2af9c0e46fe90f2d",
              "lessThan": "e8623e9c451e23d84b870811f42fd872b4089ef6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8e122582680c6f8acd686a5a2af9c0e46fe90f2d",
              "lessThan": "2a77c8dd49bccf0ca232be7c836cec1209abb8da",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8e122582680c6f8acd686a5a2af9c0e46fe90f2d",
              "lessThan": "a8ee9099f30654917aa68f55d707b5627e1dbf77",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/sunrpc/xprtrdma/svc_rdma_rw.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.8",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.64",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/sunrpc/xprtrdma/svc_rdma_rw.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-01-13T16:16:03.300",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2a77c8dd49bccf0ca232be7c836cec1209abb8da",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a8ee9099f30654917aa68f55d707b5627e1dbf77",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e8623e9c451e23d84b870811f42fd872b4089ef6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsvcrdma: use rc_pageoff for memcpy byte offset\n\nsvc_rdma_copy_inline_range added rc_curpage (page index) to the page\nbase instead of the byte offset rc_pageoff. Use rc_pageoff so copies\nland within the current page.\n\nFound by ZeroPath (https://zeropath.com)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nsvcrdma: usar rc_pageoff para el desplazamiento de bytes de memcpy\n\nsvc_rdma_copy_inline_range añadía rc_curpage (índice de página) a la base de la página en lugar del desplazamiento de bytes rc_pageoff. Usar rc_pageoff para que las copias caigan dentro de la página actual.\n\nEncontrado por ZeroPath (https://zeropath.com)"
    }
  ],
  "lastModified": "2026-07-30T06:24:46.750",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}