{"cve":"CVE-2025-68221","nvd":{"published":"2025-12-16T14:15:55.293","modified":"2026-10-14T13:10:00.187","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix address removal logic in mptcp_pm_nl_rm_addr\n\nFix inverted WARN_ON_ONCE condition that prevented normal address\nremoval counter updates. The current code only executes decrement\nlogic when the counter is already 0 (abnormal state), while\nnormal removals (counter > 0) are ignored.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/92e239e36d600002559074994a545fcfac9afd2d","https://git.kernel.org/stable/c/f7d953c38245c0e9d8e268fb6a9e524602fb44ec"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:17:07.138532058+00:00"},"epss":{"cve":"CVE-2025-68221","score":0.00205,"percentile":0.10379,"date":"2026-10-25"},"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."]}