In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)
総合評価: CVE-2020-8835 は悪用リスクが高い（73.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 6.06%、92 パーセンタイル） 根拠: 公開エクスプロイトが 1 件参照されています（Exploit-DB）。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-06-15 | 23.27% | 6.06% | -17.21% |
| 2 | 2026-04-08 | 26.05% | 23.27% | -2.79% |
| 3 | 2026-03-06 | — | 26.05% | — |
EPSS の全履歴 （全 34 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 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.1 | 6.0 | [email protected] |
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-8835 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-2020-8835 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2020-8835 |
suse
|
high | CVE-2020-8835 severity important: SUSE including 372 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, …), 588 product×package rows across 78 product lines (HPE Helion OpenStack 8, SUSE Enterprise Storage 5, … (78 product lines)): Known Not Affected 222, Fixed 209, Known Affected 157. | https://www.suse.com/security/cve/CVE-2020-8835/ |
ubuntu
|
high | CVE-2020-8835 high priority: Ubuntu including 27 source packages (linux, linux-aws, …), 162 status rows across 6 suites (bionic, eoan, focal, trusty, upstream, xenial): DNE 78, released 40, not-affected 39, ignored 5. | https://ubuntu.com/security/CVE-2020-8835 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 5.4.7, < 5.4.29 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.5.0, < 5.5.14 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.6, < 5.6.1 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 30 | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
| fedoraproject | fedora | 31 | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 19.10 | cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* |
| netapp | cloud_backup | — | cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* |
| netapp | hci_management_node | — | cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* |
| netapp | solidfire | — | cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* |
| netapp | steelstore_cloud_integrated_storage | — | cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* |
| netapp | a700s_firmware | — | cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:* |
| netapp | 8300_firmware | — | cpe:2.3:o:netapp:8300_firmware:-:*:*:*:*:*:*:* |
| netapp | 8700_firmware | — | cpe:2.3:o:netapp:8700_firmware:-:*:*:*:*:*:*:* |
| netapp | a400_firmware | — | cpe:2.3:o:netapp:a400_firmware:-:*:*:*:*:*:*:* |
| netapp | a320_firmware | — | cpe:2.3:o:netapp:a320_firmware:-:*:*:*:*:*:*:* |
| netapp | c190_firmware | — | cpe:2.3:o:netapp:c190_firmware:-:*:*:*:*:*:*:* |
| netapp | a220_firmware | — | cpe:2.3:o:netapp:a220_firmware:-:*:*:*:*:*:*:* |
| netapp | fas2720_firmware | — | cpe:2.3:o:netapp:fas2720_firmware:-:*:*:*:*:*:*:* |
| netapp | fas2750_firmware | — | cpe:2.3:o:netapp:fas2750_firmware:-:*:*:*:*:*:*:* |
| netapp | a800_firmware | — | cpe:2.3:o:netapp:a800_firmware:-:*:*:*:*:*:*:* |
| netapp | h300s_firmware | — | cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* |
| netapp | h500s_firmware | — | cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* |
| netapp | h700s_firmware | — | cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* |
| netapp | h300e_firmware | — | cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* |
| netapp | h500e_firmware | — | cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* |
| netapp | h700e_firmware | — | cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* |
| netapp | h410s_firmware | — | cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* |
| netapp | h610c_firmware | — | cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* |
| netapp | h610s_firmware | — | cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* |
| netapp | h615c_firmware | — | cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* |