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CVE-2026-68432 vxlan: require CAP_NET_ADMIN in the device netns for changelink

🗓️ 12 Aug 2026 00:07:18Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

VXLAN changelink bypasses CAP_NET_ADMIN check in underlay netns, allowing cross-netns device modification.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-68432
12 Aug 202600:07
attackerkb
cve
CVE
CVE-2026-68432
12 Aug 202600:07
cve
debiancve
Debian CVE
CVE-2026-68432
12 Aug 202600:07
debiancve
euvd
EUVD
EUVD-2026-57040
12 Aug 202600:07
euvd
nvd
NVD
CVE-2026-68432
12 Aug 202600:17
nvd
osv
OSV
DEBIAN-CVE-2026-68432
12 Aug 202600:17
osv
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/vxlan/vxlan_core.c"
    ],
    "versions": [
      {
        "version": "8bcdc4f3a20be949df54b67e5ae2734daabb5792",
        "lessThan": "b3793d7dccb192ffff29894d11824db6251acdd5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8bcdc4f3a20be949df54b67e5ae2734daabb5792",
        "lessThan": "32d10c46bfde3e9b274e9e1bd6399d0ebea8f60f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8bcdc4f3a20be949df54b67e5ae2734daabb5792",
        "lessThan": "730c7e5fea7f06e0cdf21c547222ec93234fd1d6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8bcdc4f3a20be949df54b67e5ae2734daabb5792",
        "lessThan": "e8ad0d311e225939a9a6c745d6cc384c7364ec87",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8bcdc4f3a20be949df54b67e5ae2734daabb5792",
        "lessThan": "3a61bd9637f3d929aa846e4eb3d98b48c26fcb0e",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/vxlan/vxlan_core.c"
    ],
    "versions": [
      {
        "version": "4.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.148",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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