The pit_ioport_read in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute arbitrary code on the host OS by triggering use of an invalid index.
Conclusion & alert: CVE-2015-3214 is rated High Exploit Risk (71.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.59%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 37990 | exploit_db | edb | 2015-08-27 | Exploit-DB ↗ |
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 | 2025-12-01 | 1.32% | 1.59% | +0.27% |
| 2 | 2025-10-22 | 1.47% | 1.32% | -0.15% |
| 3 | 2025-05-31 | — | 1.47% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.9 | 2.0 | MEDIUM |
|
3.4 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2015-3214 unimportant priority: Debian including 3 source packages (linux, qemu, xen), 15 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 15. | https://security-tracker.debian.org/tracker/CVE-2015-3214 |
gentoo
|
normal | CVE-2015-3214: 1 GLSA(s) (201510-02), 1 atom(s) (app-emulation/qemu); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-3214 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2015-3214 |
ubuntu
|
low | CVE-2015-3214 low priority: Ubuntu including 2 source packages (qemu, qemu-kvm), 10 status rows across 5 suites (precise, trusty, upstream, utopic, vivid): DNE 4, needs-triage 2, released 2, ignored 1, not-affected 1. | https://ubuntu.com/security/CVE-2015-3214 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| qemu | qemu | <= 2.3.0 | cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* |
| linux | linux_kernel | <= 2.6.32 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| arista | eos | 4.12 | cpe:2.3:o:arista:eos:4.12:*:*:*:*:*:*:* |
| arista | eos | 4.13 | cpe:2.3:o:arista:eos:4.13:*:*:*:*:*:*:* |
| arista | eos | 4.14 | cpe:2.3:o:arista:eos:4.14:*:*:*:*:*:*:* |
| arista | eos | 4.15 | cpe:2.3:o:arista:eos:4.15:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| lenovo | emc_px12-400r_ivx | < 1.0.10.33264 | cpe:2.3:o:lenovo:emc_px12-400r_ivx:*:*:*:*:*:*:*:* |
| lenovo | emc_px12-450r_ivx | < 1.0.10.33264 | cpe:2.3:o:lenovo:emc_px12-450r_ivx:*:*:*:*:*:*:*:* |
| redhat | openstack | 5.0 | cpe:2.3:a:redhat:openstack:5.0:*:*:*:*:*:*:* |
| redhat | openstack | 6.0 | cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:* |
| redhat | virtualization | 3.0 | cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_compute_node_eus | 7.1 | cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.1:*:*:*:*:*:*:* |
| redhat | enterprise_linux_compute_node_eus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_compute_node_eus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_compute_node_eus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_compute_node_eus | 7.5 | cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_compute_node_eus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_compute_node_eus | 7.7 | cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian | 7.0 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian_eus | 7.1_ppc64 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.1_ppc64:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian_eus | 7.2_ppc64 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.2_ppc64:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian_eus | 7.3_ppc64 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.3_ppc64:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian_eus | 7.4_ppc64 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.4_ppc64:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian_eus | 7.5_ppc64 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.5_ppc64:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian_eus | 7.6_ppc64 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.6_ppc64:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_big_endian_eus | 7.7_ppc64 | cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.7_ppc64:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_scientific_computing | 7.0 | cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.7 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.1 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.1:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.5 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.7 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_from_rhui | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server_from_rhui:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.7 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | 7.3 | cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | 7.4 | cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | 7.7 | cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |