GHSA-2vwv-vqpv-v8vc · 深刻度： critical — A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in...
A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.
総合評価: CVE-2026-5121 は中リスク（52.1/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 1.07%、60 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 0.09% | 1.07% | +0.99% |
| 2 | 2026-04-15 | 0.18% | 0.09% | -0.10% |
| 3 | 2026-04-01 | — | 0.18% | — |
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 | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-2vwv-vqpv-v8vc · 深刻度： critical — A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-5121 not yet assigned priority: Debian including 1 source packages (libarchive), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2026-5121 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-5121 |
suse
|
high | CVE-2026-5121 severity important: SUSE including 7 source package names (bsdtar-3.3.3-7.el8_10, bsdtar-3.5.3-9.el9_7, …), 9 product×package rows across 5 product lines (SUSE Liberty Linux 8, SUSE Liberty Linux 9, … (5 product lines)): Fixed 6, Known Not Affected 3. | https://www.suse.com/security/cve/CVE-2026-5121/ |
ubuntu
|
medium | CVE-2026-5121 medium priority: Ubuntu including 1 source packages (libarchive), 9 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): needed 8, needs-triage 1. | https://ubuntu.com/security/CVE-2026-5121 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| libarchive | libarchive | — | cpe:2.3:a:libarchive:libarchive:-:*:*:*:*:*:*:* |
| redhat | hardened_images | — | cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.0 | cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 9.0 | cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 10.0 | cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* |