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CVE-2026-53075

In the Linux kernel, the following vulnerability has been resolved: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls /dev/ppp open is currently authorized against file->f_cred->user_ns, while unattached administrative ioctls operate on current->nsproxy->net_ns. As a result, a local unprivileged user can create a new user namespace with CLONE_NEWUSER, gain CAP_NET_ADMIN only in that new user namespace, and still issue PPPIOCNEWUNIT, PPPIOCATTACH, or PPPIOCATTCHAN against an inh
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:18e7ed0d7f0c64747bb178acf3409c6a1bd913f811a007fe48cec77923fe9595
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ppp/ppp_generic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.30"},{"lessThan":"2.6.30","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ppp/ppp_generic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c9edd90c57ae23692fff6b049fdfa4572a9fd532","status":"affected","version":"273ec51dd7ceaa76e038875d85061ec856d8905e","versionType":"git"},{"lessThan":"5080e188c914110034bbc569d5cfa2f06204681d","status":"affected","version":"273ec51dd7ceaa76e038875d85061ec856d8905e","versionType":"git"},{"lessThan":"67e901e28d177ac9a9bed76d69ce3471e704a89e","status":"affected","version":"273ec51dd7ceaa76…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ppp/ppp_generic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.30"},{"lessThan":"2.6.30","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ppp/ppp_generic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c9edd90c57ae23692fff6b049fdfa4572a9fd532","status":"affected","version":"273ec51dd7ceaa76e038875d85061ec856d8905e","versionType":"git"},{"lessThan":"5080e188c914110034bbc569d5cfa2f06204681d","status":"affected","version":"273ec51dd7ceaa76e038875d85061ec856d8905e","versionType":"git"},{"lessThan":"67e901e28d177ac9a9bed76d69ce3471e704a89e","status":"affected","version":"273ec51dd7ceaa76…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1a8a51ce85075a56a743b6f142606dd2696a391c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/2bb6379416fd19f44c3423a00bfd8626259f6067"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/3b2c2157dc2afc5c17cd7238afefca92f1ef330e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/5013be175c7ffd8b39efbc3c9c4db5b10b85fea8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/5080e188c914110034bbc569d5cfa2f06204681d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/67e901e28d177ac9a9bed76d69ce3471e704a89e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/954745d0223e7caec917c0b2d1a889ff56fa6e54"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/c9edd90c57ae23692fff6b049fdfa4572a9fd532"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35a84491c9275e41486302721572231def0514573987226f163692ebea03f7ba · sha256:5694476e23834909… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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