Heap-based buffer overflow in the IDE subsystem in QEMU, as used in Xen 4.5.x and earlier, when the container has a CDROM drive enabled, allows local guest users to execute arbitrary code on the host via unspecified ATAPI commands.
Conclusion & alert: CVE-2015-5154 is rated Moderate Risk (44.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.61%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.39% | 0.61% | +0.22% |
| 2 | 2025-12-01 | 0.18% | 0.39% | +0.21% |
| 3 | 2025-06-10 | — | 0.18% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-5154 not yet assigned priority: Debian including 2 source packages (qemu, xen), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2015-5154 |
gentoo
|
normal | CVE-2015-5154: 2 GLSA(s) (201510-02, 201604-03), 5 atom(s) (app-emulation/pvgrub, app-emulation/qemu, app-emulation/xen, app-emulation/xen-pvgrub, app-emulation/xen-tools); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-5154 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2015-5154 |
suse
|
high | CVE-2015-5154 severity important: SUSE including 950 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 1616 product×package rows across 91 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.5, … (91 product lines)): Fixed 989, Known Not Affected 470, Known Affected 157. | https://www.suse.com/security/cve/CVE-2015-5154/ |
ubuntu
|
medium | CVE-2015-5154 medium priority: Ubuntu including 3 source packages (qemu, qemu-kvm, xen), 15 status rows across 5 suites (precise, trusty, upstream, utopic, vivid): DNE 4, released 4, needs-triage 3, ignored 2, not-affected 2. | https://ubuntu.com/security/CVE-2015-5154 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xen | xen | <= 4.5.0 | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* |
| xen | xen | 4.5.1 | cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:* |
| suse | linux_enterprise_debuginfo | 11 | cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_desktop | 11 | cpe:2.3:o:suse:linux_enterprise_desktop:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_desktop | 12 | cpe:2.3:o:suse:linux_enterprise_desktop:12:*:*:*:*:*:*:* |
| suse | linux_enterprise_server | 11 | cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_software_development_kit | 11 | cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_software_development_kit | 12 | cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:*:*:*:*:*:*:* |
| suse | suse_linux_enterprise_server | 12 | cpe:2.3:o:suse:suse_linux_enterprise_server:12:*:*:*:*:*:*:* |
| fedoraproject | fedora | 21 | cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* |
| fedoraproject | fedora | 22 | cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* |
| fedoraproject | fedora | 23 | cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* |
| qemu | qemu | <= 2.3.0 | cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* |