{"vulnerability": "cve-2026-6439", "sightings": [{"uuid": "12431ede-f991-4291-963a-0caa22d49319", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-6439", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3mjopg5kzre2f", "content": "", "creation_timestamp": "2026-04-17T10:23:49.219017Z"}, {"uuid": "ee1efbe6-9fef-489b-abd8-8ab5ebff8349", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-6439", "type": "seen", "source": "https://bsky.app/profile/atomicedge.bsky.social/post/3mjotaarzaz2u", "content": "", "creation_timestamp": "2026-04-17T11:32:06.502215Z"}, {"uuid": "1a6039f0-12f8-4742-b5fe-39163305bed0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-64399", "type": "seen", "source": "https://bsky.app/profile/hugovalters.bsky.social/post/3mriebgo2ti2z", "content": "CVE-2026-64399 - Linux ksmbd missing permission checks on FSCTL_DUPLICATE_EXTENTS_TO_FILE. Allows data overwrite on read-only shares. CVSS 0.0. No patch yet; monitor for updates. #CVE #Linux #infosec\n\nhttps://www.valtersit.com/cve/CVE-2026-64399/", "creation_timestamp": "2026-07-25T17:09:54.843603Z"}, {"uuid": "c5cc0bd1-da5b-421c-bc6a-3b8069c00641", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-64399", "type": "seen", "source": "https://mastodon.social/users/hugovalters/statuses/116981720297678493", "content": "CVE-2026-64399 - Linux ksmbd missing permission checks on FSCTL_DUPLICATE_EXTENTS_TO_FILE. Allows data overwrite on read-only shares. CVSS 0.0. No patch yet; monitor for updates. #CVE #Linux #infosec\nhttps://www.valtersit.com/cve/CVE-2026-64399/", "creation_timestamp": "2026-07-25T17:09:54.941224Z"}, {"uuid": "57836acd-dab0-4654-b1db-033e10df5056", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-64391", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mrmao6aj6i2v", "content": "CVE-2026-64391 - linux\nThe ksmbd software has a flaw that could allow an attacker to access files using incorrect permissions. This could potentially lead to unauthorized access to sensitive data. Users should update\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#linux #CVE #infosec", "creation_timestamp": "2026-07-27T06:16:06.296019Z"}, {"uuid": "875f6e22-2a82-4f40-bcd6-12f5c2fdb4f9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-64392", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mrmarpnodf2s", "content": "CVE-2026-64392 - linux\nThe ksmbd software on Linux systems has a vulnerability that could allow a malicious user to delete files even if they don't have permission to do so. This is a concern because it could be used\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#linux #CVE #infosec", "creation_timestamp": "2026-07-27T06:18:05.207230Z"}, {"uuid": "e648355e-0575-49cf-9a1b-0f85944c0462", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-64393", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mrmarr5wvd2k", "content": "CVE-2026-64393 - linux\nThe ksmbd software on Linux systems has a security flaw that could allow an attacker to access sensitive information. This is because the software does not properly check the permissions of users\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#linux #CVE #infosec", "creation_timestamp": "2026-07-27T06:18:06.226582Z"}, {"uuid": "2bb32103-9ec5-4b06-a182-9264a137af4f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-64397", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mrmavc7z7s2y", "content": "CVE-2026-64397 - linux\nA bug in ksmbd, a Linux kernel component, allows a malicious network request to potentially corrupt files. This affects systems using ksmbd for file sharing. To fix this, update your ksmbd\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#linux #CVE #infosec", "creation_timestamp": "2026-07-27T06:20:05.236694Z"}, {"uuid": "3bb3e36e-b61b-41be-b5f8-be489576a181", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-64399", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mrmavdlqwi2z", "content": "CVE-2026-64399 - linux\nThe ksmbd file sharing service for Linux does not properly check permissions when copying data. This can allow a malicious client to overwrite data on a read-only share or from a handle with\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#linux #CVE #infosec", "creation_timestamp": "2026-07-27T06:20:07.036944Z"}]}