{"cve":"CVE-2023-53839","nvd":{"published":"2025-12-09T16:17:23.527","modified":"2026-06-17T06:46:09.697","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndccp: fix data-race around dp->dccps_mss_cache\n\ndccp_sendmsg() reads dp->dccps_mss_cache before locking the socket.\nSame thing in do_dccp_getsockopt().\n\nAdd READ_ONCE()/WRITE_ONCE() annotations,\nand change dccp_sendmsg() to check again dccps_mss_cache\nafter socket is locked.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1","https://git.kernel.org/stable/c/2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817","https://git.kernel.org/stable/c/67eebc7a9217f999b779d46fba5312a716f0dc1d","https://git.kernel.org/stable/c/6d701c95ee6463abcbb6da543060d6e444554135","https://git.kernel.org/stable/c/a47e598fbd8617967e49d85c49c22f9fc642704c"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:16:40.427100871+00:00"},"epss":{"cve":"CVE-2023-53839","score":0.00257,"percentile":0.1741,"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."]}