GHSA-4hvh-m426-wv8w · 深刻度： critical — An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length...
An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for XML_ParseBuffer.
総合評価: CVE-2024-45490 は中リスク（54.5/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.61%、70 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 | 2026-05-04 | 0.54% | 0.61% | +0.07% |
| 2 | 2026-01-19 | 0.30% | 0.54% | +0.24% |
| 3 | 2025-12-24 | — | 0.30% | — |
EPSS の全履歴 （全 20 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-4hvh-m426-wv8w · 深刻度： critical — An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length...
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-45490: 3 source package rows (expat, qt5-qtwebengine, qt6-qtwebengine); 14 state rows across 11 repos (3.17-main, 3.18-main, 3.19-main, 3.20-community, 3.20-main, 3.21-community, 3.21-main, 3.22-community, 3.22-main, edge-community, edge-main); fixed 14, open 0. | https://security.alpinelinux.org/vuln/CVE-2024-45490 |
debian
|
not yet assigned | CVE-2024-45490 not yet assigned priority: Debian including 2 source packages (expat, libxmltok), 7 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5, open 2. | https://security-tracker.debian.org/tracker/CVE-2024-45490 |
gentoo
|
high | CVE-2024-45490: 1 GLSA(s) (202501-09), 1 atom(s) (dev-qt/qtwebengine); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2024-45490 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2024-45490 |
suse
|
medium | CVE-2024-45490 severity moderate: SUSE including 375 source package names (0.0.17-1.1:libexpat1-2.4.4-150400.3.22.1, 0.1.6-1.2:libexpat1-2.4.4-150400.3.22.1, …), 861 product×package rows across 345 product lines (Container bci/bci-init, Container bci/bci-sle15-kernel-module-devel, … (345 product lines)): Fixed 639, Known Affected 216, Known Not Affected 6. | https://www.suse.com/security/cve/CVE-2024-45490/ |
ubuntu
|
medium | CVE-2024-45490 medium priority: Ubuntu including 23 source packages (apache2, apr-util, …), 208 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 72, not-affected 68, DNE 37, ignored 18, released 13. | https://ubuntu.com/security/CVE-2024-45490 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| libexpat_project | libexpat | < 2.6.3 | cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* |