GHSA-c75f-55f6-f63q · 深刻度： high — A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR...
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
総合評価: CVE-2026-4424 は中リスク（49.8/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.88%、54 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 | 0.10% | 0.88% | +0.78% |
| 2 | 2026-05-26 | 0.16% | 0.10% | -0.06% |
| 3 | 2026-05-22 | — | 0.16% | — |
EPSS の全履歴 （全 7 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] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
GHSA-c75f-55f6-f63q · 深刻度： high — A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-4424 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-2026-4424 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2026-4424 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2026-4424/ |
ubuntu
|
medium | CVE-2026-4424 medium priority: Ubuntu including 1 source packages (libarchive), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): deferred 7, needs-triage 1. | https://ubuntu.com/security/CVE-2026-4424 |
| 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 | openshift_container_platform | 4.16 | cpe:2.3:a:redhat:openshift_container_platform:4.16:*:*:*:*:*:*:* |
| redhat | openshift_container_platform_for_arm64 | 4.16 | cpe:2.3:a:redhat:openshift_container_platform_for_arm64:4.16:*:*:*:*:*:*:* |
| redhat | openshift_container_platform_for_power | 4.16 | cpe:2.3:a:redhat:openshift_container_platform_for_power:4.16:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 8.2 | cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 8.4 | cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* |