The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.
結論預警: CVE-2016-4470 綜合評估為低風險（37.7/100）：CVSS 技術影響為中級，利用機率偏低（EPSS 0.59%） 強制指令: 持續追蹤利用情報與 EPSS 變化，並適時複評優先級。
風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.05% | 0.59% | +0.54% |
| 2 | 2025-03-30 | 0.52% | 0.05% | -0.47% |
| 3 | 2025-03-29 | — | 0.52% | — |
完整 EPSS 歷史 （共 6 筆）
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 5.5 | 3.0 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 4.9 | 2.0 | MEDIUM |
|
3.9 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-4470 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-4470 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2016-4470 |
suse
|
medium | CVE-2016-4470 severity moderate: SUSE including 259 source package names (kernel-3.10.0-327.28.2.el7, kernel-abi-whitelists-3.10.0-327.28.2.el7, …), 749 product×package rows across 106 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (106 product lines)): Fixed 409, Known Not Affected 340. | https://www.suse.com/security/cve/CVE-2016-4470/ |
ubuntu
|
medium | CVE-2016-4470 medium priority: Ubuntu including 27 source packages (linux, linux-armadaxp, …), 185 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): DNE 120, released 37, ignored 17, not-affected 11. | https://ubuntu.com/security/CVE-2016-4470 |
: <a href="http://cwe.mitre.org/data/definitions/416.html">CWE-416: Use After Free</a>
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| oracle | vm_server | 3.3 | cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:* |
| oracle | vm_server | 3.4 | cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:* |
| oracle | linux | 5.0 | cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:* |
| oracle | linux | 6 | cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* |
| oracle | linux | 7 | cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* |
| linux | linux_kernel | <= 4.6.3 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| novell | suse_linux_enterprise_real_time_extension | 12.0 | cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:* |
| redhat | enterprise_linux | 6.0 | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_real_time | 7.0 | cpe:2.3:o:redhat:enterprise_linux_for_real_time:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node | 7.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node_eus | 7.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_mrg | 2.0 | cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* |