{"cve":"CVE-2023-53297","nvd":{"published":"2025-09-16T08:15:39.053","modified":"2026-08-04T10:19:00.817","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp\n\nconn->chan_lock isn't acquired before l2cap_get_chan_by_scid,\nif l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance'\nis triggered.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46","https://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d","https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce","https://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7","https://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2023-53297","score":0.00222,"percentile":0.12832,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}