[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Some Viridian hypercalls can specify a mask of vCPU IDs as an input, in one of three formats. Xen has boundary checking bugs with all three formats, which can cause out-of-bounds reads and writes while processing the inputs. * CVE-2025-58147. Hypercalls using the HV_VP_SET Sparse format can cause vpmask_set() to write out of bounds when converting the bitmap to Xen's format. * CVE-2025-58148. Hypercalls using any input format can cause send_ipi() to read d->vcpu[] out-of-bounds, and operate on a wild vCPU pointer.
総合評価: CVE-2025-58147 は低リスク（38.1/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.31%、22 パーセンタイル） 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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。
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 | 0.02% | 0.31% | +0.29% |
| 2 | 2026-03-19 | 0.05% | 0.02% | -0.03% |
| 3 | 2026-03-02 | — | 0.05% | — |
EPSS の全履歴 （全 4 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2025-58147: 1 source package rows (xen); 240 state rows across 6 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 31, open 209. | https://security.alpinelinux.org/vuln/CVE-2025-58147 |
debian
|
end-of-life | CVE-2025-58147 end-of-life priority: Debian including 1 source packages (xen), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2025-58147 |
suse
|
medium | CVE-2025-58147 severity moderate: SUSE including 272 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, …), 658 product×package rows across 235 product lines (Image SLES15-SP4-BYOS, Image SLES15-SP4-BYOS-Azure, … (235 product lines)): Fixed 366, Known Affected 231, Known Not Affected 61. | https://www.suse.com/security/cve/CVE-2025-58147/ |
ubuntu
|
medium | CVE-2025-58147 medium priority: Ubuntu including 1 source packages (xen), 8 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): needs-triage 7, ignored 1. | https://ubuntu.com/security/CVE-2025-58147 |
| URL | タグ |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-475.html | Patch Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2025/10/21/1 | Mailing List Patch Third Party Advisory |
| http://xenbits.xen.org/xsa/advisory-475.html | Patch Vendor Advisory |