An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.
総合評価: CVE-2019-3900 は中リスク（62.3/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 4.42%、90 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-16 | 4.46% | 4.42% | -0.04% |
| 2 | 2026-06-15 | 0.21% | 4.46% | +4.26% |
| 3 | 2026-03-13 | — | 0.21% | — |
EPSS の全履歴 （全 18 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.7 | 3.1 | HIGH |
|
3.1 | 4.0 | [email protected] |
| 6.3 | 3.0 | MEDIUM |
|
1.8 | 4.0 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.0 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2019-3900 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-2019-3900 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2019-3900 |
suse
|
low | — | https://www.suse.com/security/cve/CVE-2019-3900/ |
ubuntu
|
medium | CVE-2019-3900 medium priority: Ubuntu including 118 source packages (linux, linux-aws, …), 1187 status rows across 13 suites (bionic, cosmic, disco, eoan, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 840, not-affected 164, released 161, ignored 22. | https://ubuntu.com/security/CVE-2019-3900 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 2.6.34, < 3.16.72 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.17, < 4.4.191 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.5, < 4.9.190 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.10, < 4.14.133 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.15, < 4.19.64 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 5.2 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 29 | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
| fedoraproject | fedora | 30 | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 6.0 | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 7.0 | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 19.04 | cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* |
| netapp | active_iq_unified_manager_for_vmware_vsphere | >= 9.5 | cpe:2.3:a:netapp:active_iq_unified_manager_for_vmware_vsphere:*:*:*:*:*:*:*:* |
| netapp | hci_management_node | — | cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* |
| netapp | snapprotect | — | cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:* |
| netapp | solidfire | — | cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* |
| netapp | storage_replication_adapter_for_clustered_data_ontap_for_vmware_vsphere | >= 7.2 | cpe:2.3:a:netapp:storage_replication_adapter_for_clustered_data_ontap_for_vmware_vsphere:*:*:*:*:*:*:*:* |
| netapp | vasa_provider_for_clustered_data_ontap | >= 7.2 | cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:*:*:*:*:*:*:*:* |
| netapp | virtual_storage_console_for_vmware_vsphere | >= 7.2 | cpe:2.3:a:netapp:virtual_storage_console_for_vmware_vsphere:*:*:*:*:*:*:*:* |
| netapp | cn1610_firmware | — | cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:* |
| oracle | sd-wan_edge | 8.2 | cpe:2.3:a:oracle:sd-wan_edge:8.2:*:*:*:*:*:*:* |
| fedoraproject | fedora | 28 | cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* |