{"cve":"CVE-2015-0239","nvd":{"published":"2015-03-02T11:59:04.693","modified":"2026-06-17T00:19:48.033","status":"Modified","description":"The em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel before 3.18.5, when the guest OS lacks SYSENTER MSR initialization, allows guest OS users to gain guest OS privileges or cause a denial of service (guest OS crash) by triggering use of a 16-bit code segment for emulation of a SYSENTER instruction.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-269"],"references":["http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3747379accba8e95d70cec0eae0582c8c182050","http://permalink.gmane.org/gmane.linux.kernel.commits.head/502245","http://rhn.redhat.com/errata/RHSA-2015-1272.html","http://www.debian.org/security/2015/dsa-3170","http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5"],"products":["canonical:ubuntu_linux","debian:debian_linux","linux:linux_kernel","oracle:linux","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_workstation"],"source":"nvd","synced_at":"2026-10-19T20:35:35.528235705+00:00"},"epss":{"cve":"CVE-2015-0239","score":0.00643,"percentile":0.50832,"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."]}