CVE-2025-68192

Estado: AplazadaCrítica (9.8)—

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

net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup

Raw IP packets have no MAC header, leaving skb->mac_header uninitialized. This can trigger kernel panics on ARM64 when xfrm or other subsystems access the offset due to strict alignment checks.

Initialize the MAC header to prevent such crashes.

This can trigger kernel panics on ARM when running IPsec over the qmimux0 interface.

Example trace:

Detalles técnicos trazas, registros y código del informe original

    Internal error: Oops: 000000009600004f [#1] SMP
    CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.34-gbe78e49cb433 #1
    Hardware name: LS1028A RDB Board (DT)
    pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
    pc : xfrm_input+0xde8/0x1318
    lr : xfrm_input+0x61c/0x1318
    sp : ffff800080003b20
    Call trace:
     xfrm_input+0xde8/0x1318
     xfrm6_rcv+0x38/0x44
     xfrm6_esp_rcv+0x48/0xa8
     ip6_protocol_deliver_rcu+0x94/0x4b0
     ip6_input_finish+0x44/0x70
     ip6_input+0x44/0xc0
     ipv6_rcv+0x6c/0x114
     __netif_receive_skb_one_core+0x5c/0x8c
     __netif_receive_skb+0x18/0x60
     process_backlog+0x78/0x17c
     __napi_poll+0x38/0x180
     net_rx_action+0x168/0x2f0

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.61%
Percentil entre todas las CVEs puntuadas: 48
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access75 %
Impacto principalT1499.004 Application or System Exploitationimpact85 %

AV:N/AC:L/PR:N/UI:N indica explotación remota sin autenticación (T1190). El kernel panic en ARM64 por acceso a memoria desalineada causa DoS (T1499.004); potencial escalada si se corrompe memoria (T1068).

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 Traffic Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Application 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 Kernel^AI

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-68192",
  "cveTags": [],
  "metrics": {
    "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": "c6adf77953bcec0ad63d7782479452464e50f7a3",
              "lessThan": "d693c47fb902b988f5752182e4f7fbde5e6dcaf9",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "0aabccdcec1f4a36f95829ea2263f845bbc77223",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c6adf77953bcec0ad63d7782479452464e50f7a3",
              "lessThan": "4e6b9004f01d0fef5b19778399bc5bf55f8c2d71",
              "versionType": "git"
            },
            {
              "status": "affected",
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            {
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              "lessThan": "dd03780c29f87c26c0e0bb7e0db528c8109461fb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c6adf77953bcec0ad63d7782479452464e50f7a3",
              "lessThan": "ae811175cea35b03ac6d7c910f43a82a43b9c3b3",
              "versionType": "git"
            },
            {
              "status": "affected",
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            {
              "status": "affected",
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              "lessThan": "e120f46768d98151ece8756ebd688b0e43dc8b29",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/usb/qmi_wwan.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.12"
            },
            {
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              "version": "0",
              "lessThan": "4.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.117",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.58",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/usb/qmi_wwan.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-16T14:15:51.900",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0aabccdcec1f4a36f95829ea2263f845bbc77223",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4e6b9004f01d0fef5b19778399bc5bf55f8c2d71",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8ab3b8f958d861a7f725a5be60769106509fbd69",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ae811175cea35b03ac6d7c910f43a82a43b9c3b3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bf527b80b80a282ab5bf1540546211fc35e5cd42",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d693c47fb902b988f5752182e4f7fbde5e6dcaf9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dd03780c29f87c26c0e0bb7e0db528c8109461fb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e120f46768d98151ece8756ebd688b0e43dc8b29",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup\n\nRaw IP packets have no MAC header, leaving skb->mac_header uninitialized.\nThis can trigger kernel panics on ARM64 when xfrm or other subsystems\naccess the offset due to strict alignment checks.\n\nInitialize the MAC header to prevent such crashes.\n\nThis can trigger kernel panics on ARM when running IPsec over the\nqmimux0 interface.\n\nExample trace:\n\n    Internal error: Oops: 000000009600004f [#1] SMP\n    CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.34-gbe78e49cb433 #1\n    Hardware name: LS1028A RDB Board (DT)\n    pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n    pc : xfrm_input+0xde8/0x1318\n    lr : xfrm_input+0x61c/0x1318\n    sp : ffff800080003b20\n    Call trace:\n     xfrm_input+0xde8/0x1318\n     xfrm6_rcv+0x38/0x44\n     xfrm6_esp_rcv+0x48/0xa8\n     ip6_protocol_deliver_rcu+0x94/0x4b0\n     ip6_input_finish+0x44/0x70\n     ip6_input+0x44/0xc0\n     ipv6_rcv+0x6c/0x114\n     __netif_receive_skb_one_core+0x5c/0x8c\n     __netif_receive_skb+0x18/0x60\n     process_backlog+0x78/0x17c\n     __napi_poll+0x38/0x180\n     net_rx_action+0x168/0x2f0"
    }
  ],
  "lastModified": "2026-07-30T06:24:32.990",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}