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CVE-2026-100070

Estado: En análisisSin puntuar—

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

netfilter: nf_nat_sip: rewind offset when NAT shrinks the packet

sashiko says: If map_addr() changes the packet length, such as when the public NAT IP string is shorter or longer than the internal IP, coff will still point to the offset relative to the pre-mangled packet. If the packet shrinks, coff could overshoot the correct position, potentially causing the next ct_sip_parse_header_uri() call to silently skip bytes and miss subsequent Contact headers. Could this lead to a failure to NAT those subsequent headers and leak internal network details?

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

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).

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-2026-100070",
  "cveTags": [],
  "metrics": {},
  "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": "c978cd3a937141deaf7995b849824af6dacdeae7",
              "lessThan": "6828aca3d82717c2fda92af81c0dda642bc2b465",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c978cd3a937141deaf7995b849824af6dacdeae7",
              "lessThan": "2703f5ea8d85bc729f433ac09ee902084c947122",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c978cd3a937141deaf7995b849824af6dacdeae7",
              "lessThan": "0f4d30e2e49f343fc28ba1e259fd22969b940c46",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c978cd3a937141deaf7995b849824af6dacdeae7",
              "lessThan": "810da5a63549531da78348b0a4545042d84e01e2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c978cd3a937141deaf7995b849824af6dacdeae7",
              "lessThan": "668cc1c30caedc63070b10d17d5514748988a140",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c978cd3a937141deaf7995b849824af6dacdeae7",
              "lessThan": "e70d48fcf8382581162608a4a322919bfd22aef3",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/netfilter/nf_nat_sip.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.26"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.26",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/netfilter/nf_nat_sip.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-25T14:17:13.400",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0f4d30e2e49f343fc28ba1e259fd22969b940c46",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/16aecbe3036f6097c26b51b12e4c1cf207769690",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2703f5ea8d85bc729f433ac09ee902084c947122",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/668cc1c30caedc63070b10d17d5514748988a140",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6828aca3d82717c2fda92af81c0dda642bc2b465",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/810da5a63549531da78348b0a4545042d84e01e2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c408d416618ebb8a95e3097a13f3b793ea9272ee",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e70d48fcf8382581162608a4a322919bfd22aef3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Undergoing Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_nat_sip: rewind offset when NAT shrinks the packet\n\nsashiko says:\n If map_addr() changes the packet length, such as when the public NAT IP\n string is shorter or longer than the internal IP, coff will still point to\n the offset relative to the pre-mangled packet.\n If the packet shrinks, coff could overshoot the correct position,\n potentially causing the next ct_sip_parse_header_uri() call to silently\n skip bytes and miss subsequent Contact headers. Could this lead to a\n failure to NAT those subsequent headers and leak internal network details?"
    }
  ],
  "lastModified": "2026-09-30T14:10:59.253",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}