A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat.
総合評価: CVE-2022-27666 は中リスク(64.3/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 5.52%、92 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 | 2026-06-28 | 4.53% | 5.52% | +0.99% |
| 2 | 2026-06-15 | 0.91% | 4.53% | +3.62% |
| 3 | 2026-05-30 | — | 0.91% | — |
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 |
|
1.8 | 5.9 | [email protected] |
| 4.6 | 2.0 | MEDIUM |
|
3.9 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2022-27666 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-2022-27666 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2022-27666 |
suse
|
high | CVE-2022-27666 severity important: SUSE including 380 source package names (bpftool-4.18.0-372.13.1.el8_6, bpftool-5.14.0-70.17.1.el9_0, …), 1066 product×package rows across 124 product lines (Container suse/sle-micro-rancher/5.2, HPE Helion OpenStack 8, … (124 product lines)): Fixed 927, Known Not Affected 139. | https://www.suse.com/security/cve/CVE-2022-27666/ |
ubuntu
|
medium | CVE-2022-27666 medium priority: Ubuntu including 167 source packages (linux, linux-allwinner, …), 2042 status rows across 15 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1576, released 212, not-affected 198, ignored 56. | https://ubuntu.com/security/CVE-2022-27666 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | < 5.17 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 5.17 | cpe:2.3:o:linux:linux_kernel:5.17:-:*:*:*:*:*:* |
| linux | linux_kernel | 5.17 | cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 5.17 | cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:* |
| linux | linux_kernel | 5.17 | cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:* |
| linux | linux_kernel | 5.17 | cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:* |
| linux | linux_kernel | 5.17 | cpe:2.3:o:linux:linux_kernel:5.17:rc5:*:*:*:*:*:* |
| linux | linux_kernel | 5.17 | cpe:2.3:o:linux:linux_kernel:5.17:rc6:*:*:*:*:*:* |
| linux | linux_kernel | 5.17 | cpe:2.3:o:linux:linux_kernel:5.17:rc7:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| redhat | virtualization | 4.0 | cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| 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 | h410c_firmware | — | cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2061633 | Issue Tracking Patch Third Party Advisory |
| https://github.com/torvalds/linux/commit/ebe48d368e97d007bfeb76fcb065d6cfc4c96645 | Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220429-0001/ | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5127 | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5173 | Third Party Advisory |