{"vulnerability": "CVE-2026-23239", "sightings": [{"uuid": "13d08c20-6230-4b9e-b7bf-e1f64079878e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-23239", "type": "seen", "source": "https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0316/", "content": "", "creation_timestamp": "2026-03-19T00:00:00.000000Z"}, {"uuid": "850c592a-69e8-41e2-b07b-b5e7e98940bf", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-23239", "type": "seen", "source": "Telegram/i8oP6kH3TMuTBn9Jq_iILqODgEKZ4N0WSPz_Eiil79D-3XE", "content": "", "creation_timestamp": "2026-04-02T17:33:37.000000Z"}, {"uuid": "5cac3bbd-b128-43bb-b549-7e75b2398ee2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-23239", "type": "seen", "source": "https://www.hkcert.org/security-bulletin/suse-linux-kernel-multiple-vulnerabilities_20260601", "content": "", "creation_timestamp": "2026-05-31T20:00:00.000000Z"}, {"uuid": "b9072110-fab6-4e33-aae0-5514d260213b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-23239", "type": "seen", "source": "https://bsky.app/profile/securityonline.bsky.social/post/3mwcis6nd6522", "content": "RustyTux is a public PoC for a Linux kernel privilege escalation via an ESP-in-TCP use-after-free (CVE-2026-23239). Details and exploit code are now public.\n\n#RustyTux #LinuxKernel #PrivilegeEscalation #UseAfterFree #espintcp #LPE #PoC #CVE202623239", "creation_timestamp": "2026-09-25T00:20:52.220304Z"}]}