{"cve":"CVE-2026-58090","nvd":{"published":"2026-08-26T05:18:12.217","modified":"2026-09-24T14:01:08.893","status":"Analyzed","description":"The SOCK_STREAM receive path in the unix socket implementation failed to fully detach control messages from the socket buffer before processing them.  Some error paths would free those messages, leaving freed data mbufs in the receive socket buffer.\n\nAn unprivileged local user can exploit this use-after-free to escalate privileges.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://security.freebsd.org/advisories/FreeBSD-SA-26:57.unix.asc"],"products":["freebsd:freebsd"],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-58090","score":0.00153,"percentile":0.04456,"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."]}