{"cve":"CVE-2019-18660","nvd":{"published":"2019-11-27T23:15:10.960","modified":"2026-06-17T02:25:14.807","status":"Modified","description":"The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","score":4.7},"cwes":["CWE-200"],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html","http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html","http://www.openwall.com/lists/oss-security/2019/11/27/1","https://access.redhat.com/errata/RHSA-2020:0174","https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1"],"products":["canonical:ubuntu_linux","fedoraproject:fedora","linux:linux_kernel","opensuse:leap","redhat:enterprise_linux"],"source":"nvd","synced_at":"2026-10-19T20:59:27.069234358+00:00"},"epss":{"cve":"CVE-2019-18660","score":0.00736,"percentile":0.54473,"date":"2026-11-01"},"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."]}