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CVE-2026-63833

In the Linux kernel, the following vulnerability has been resolved: ntfs3: reject direct userspace writes to reserved $LX* xattrs NTFS3 uses $LXUID, $LXGID, $LXMOD and $LXDEV as internal WSL permission metadata and reloads them into i_uid, i_gid and i_mode from ntfs_get_wsl_perm(). Because the empty-prefix xattr handler also lets file owners call setxattr() on these names directly, an unprivileged writer on a writable ntfs3 mount can plant root ownership and S_ISUID on their own file and gain
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4f5431129501f299ae9f5f6636882ef7ed444cb1cfaed1787fdcad000dd8dc30
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":["fs/ntfs3/xattr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versionType":"semver"},{"lessThanOrEqua…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/ntfs3/xattr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e574af95234afc3c725988bbc1fdeb46b9f386a4","status":"affected","version":"be71b5cba2e6485e8959da7a9f9a44461a1bb074","versionType":"git"},{"lessThan":"2c3cd6da4a14380ef79e34bd9dff7caf46687477","status":"affected","version":"be71b5cba2e6485e8959da7a9f9a44461a1bb074","versionType":"git"},{"lessThan":"e8852ae29868e449fdb47eebc28f35fb80741a5f","status":"affected","version":"be71b5cba2e6485e8959da7a9f9a4…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/ntfs3/xattr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versionType":"semver"},{"lessThanOrEqua…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/ntfs3/xattr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e574af95234afc3c725988bbc1fdeb46b9f386a4","status":"affected","version":"be71b5cba2e6485e8959da7a9f9a44461a1bb074","versionType":"git"},{"lessThan":"2c3cd6da4a14380ef79e34bd9dff7caf46687477","status":"affected","version":"be71b5cba2e6485e8959da7a9f9a44461a1bb074","versionType":"git"},{"lessThan":"e8852ae29868e449fdb47eebc28f35fb80741a5f","status":"affected","version":"be71b5cba2e6485e8959da7a9f9a4…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/293a84fa40b3a1b3471c0545722724bc10973f76"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/2c3cd6da4a14380ef79e34bd9dff7caf46687477"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/5b08dccecf825cbf905f348bc6ccb497507e28e2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/5e658b9245a52d838ef93729a7bc07de8e19deb7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/e574af95234afc3c725988bbc1fdeb46b9f386a4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/e8852ae29868e449fdb47eebc28f35fb80741a5f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f8d420949b335a4b51d06ab276beee6b8dfdc909"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6faee63223128a4bf8b3c9cc32b4f8b91d2369f670826ad92989bc9bb8a1feaa · sha256:b5f50b537b82c8b0… · /containers/cna/references/3

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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