{"id":"CVE-2023-53827","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}\n\nSimilar to commit d0be8347c623 (\"Bluetooth: L2CAP: Fix use-after-free\ncaused by l2cap_chan_put\"), ju…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}\n\nSimilar to commit d0be8347c623 (\"Bluetooth: L2CAP: Fix use-after-free\ncaused by l2cap_chan_put\"), ju…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 61d6ef3e3408cdf7e622646fb90a9f7f9560b943 < f2d38e77aa5f3effc143e7dd24da8acf02925958","Linux >= 61d6ef3e3408cdf7e622646fb90a9f7f9560b943 < 1351551aa9058e07a20a27a158270cf84fcde621","Linux >= 61d6ef3e3408cdf7e622646fb90a9f7f9560b943 < c02421992505c95c7f3c9ad59ee35e22eac60988","Linux >= 61d6ef3e3408cdf7e622646fb90a9f7f9560b943 < d9ba36c22a7bb09d6bac4cc2f243eff05da53f43","Linux >= 61d6ef3e3408cdf7e622646fb90a9f7f9560b943 < ac6725a634f7e8c0330610a8527f20c730b61115","Linux >= 61d6ef3e3408cdf7e622646fb90a9f7f9560b943 < 348d446762e7c70778df8bafbdf3fa0df2123f58","Linux >= 61d6ef3e3408cdf7e622646fb90a9f7f9560b943 < d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284","Linux >= 61d6ef3e3408cdf7e622646fb90a9f7f9560b943 < a2a9339e1c9deb7e1e079e12e27a0265aea8421a","Linux 3.5"],"published":"2025-12-09","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:17:49.823","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-53827","references":[{"url":"https://git.kernel.org/stable/c/1351551aa9058e07a20a27a158270cf84fcde621","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/348d446762e7c70778df8bafbdf3fa0df2123f58","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a2a9339e1c9deb7e1e079e12e27a0265aea8421a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ac6725a634f7e8c0330610a8527f20c730b61115","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c02421992505c95c7f3c9ad59ee35e22eac60988","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d9ba36c22a7bb09d6bac4cc2f243eff05da53f43","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f2d38e77aa5f3effc143e7dd24da8acf02925958","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00391,"epssPercentile":0.33016,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:37:31.724293Z"},"ingestedAt":"2026-10-15T22:48:25.423Z","slug":"CVE-2023-53827","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}\n\nSimilar to commit d0be8347c623 (\"Bluetooth: L2CAP: Fix use-after-free\ncaused by l2cap_chan_put\"), just use l2cap_chan_hold_unless_zero to\nprevent referencing a channel that is about to be destroyed.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}