{"vulnerability": "CVE-2021-23134", "sightings": [{"uuid": "6397abb9-c26b-4aef-881f-e99182d1fd53", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-23134", "type": "published-proof-of-concept", "source": "https://t.me/linkersec/150", "content": "Linux kernel Use-After-Free (CVE-2021-23134) PoC\n\nAn article by @Awarau1 about exploiting a use-after-free in NFC sockets to leak /etc/shadow.\n\nAmusingly, uses TeX formatting on web to explain the exploit.", "creation_timestamp": "2022-02-22T00:26:27.000000Z"}, {"uuid": "4c42a54c-d908-46be-bbb9-4e6786744a30", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-23134", "type": "seen", "source": "https://t.me/reconshell/703", "content": "CVE-2021-23134\n\nUse After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.2 allows local attackers to elevate their privileges\n\nRead More : https://cve.reconshell.com/cve/CVE-2021-23134", "creation_timestamp": "2021-05-16T07:45:34.000000Z"}, {"uuid": "b8141a30-2d8e-45de-b978-bd927ce33ae9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-23134", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/5470", "content": "#Threat_Research\n1. SMS PVA Services' Use of Infected Android Phones Reveals Flaws in SMS Verification\nhttps://www.trendmicro.com/en/research/22/b/sms-pva-services-use-of-infected-android-phones-reveals-flaws-in-sms-verification.html\n2. Linux kernel UAF (CVE-2021-23134) PoC\nhttps://ruia-ruia.github.io/NFC-UAF", "creation_timestamp": "2022-02-22T12:04:12.000000Z"}, {"uuid": "998e165c-97b0-4fa5-8cc2-0cf51a49a9c4", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23134", "type": "seen", "source": "https://t.me/reverseame/2144", "content": "", "creation_timestamp": "2026-07-29T12:02:45.094152Z"}, {"uuid": "bab3c07a-67bb-41ea-98e3-ccb341f64f4d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23134", "type": "seen", "source": "https://t.me/reverseame/2144", "content": "", "creation_timestamp": "2026-07-30T01:01:55.406773Z"}, {"uuid": "af914f41-9cfd-4a7f-9b12-2b3b6ea6535b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23134", "type": "published-proof-of-concept", "source": "https://t.me/reverseame/2144", "content": "", "creation_timestamp": "2026-08-03T02:13:40.548625Z"}, {"uuid": "7d617666-8c86-4b1d-b7a7-a30fcb965af5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23134", "type": "published-proof-of-concept", "source": "https://t.me/reverseame/2144", "content": "", "creation_timestamp": "2026-08-04T00:00:53.717721Z"}]}