A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution.
総合評価: CVE-2020-9951 は中リスク(63.8/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 2.33%、82 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 | 2026-07-11 | 2.24% | 2.33% | +0.10% |
| 2 | 2026-06-18 | 2.25% | 2.24% | -0.02% |
| 3 | 2026-06-15 | — | 2.25% | — |
EPSS の全履歴 (全 17 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 |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2020-9951: 1 source package rows (webkit2gtk); 5 state rows across 5 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, edge-community); fixed 5, open 0. | https://security.alpinelinux.org/vuln/CVE-2020-9951 |
debian
|
not yet assigned | CVE-2020-9951 not yet assigned priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2020-9951 |
gentoo
|
normal | CVE-2020-9951: 1 GLSA(s) (202012-10), 1 atom(s) (net-libs/webkit-gtk); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-9951 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-9951 |
suse
|
high | CVE-2020-9951 severity important: SUSE including 185 source package names (WebKit2GTK-4.1-lang-2.36.0-150400.2.13, WebKit2GTK-5.0-lang-2.36.0-150400.2.12, …), 470 product×package rows across 66 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (66 product lines)): Fixed 467, Known Not Affected 3. | https://www.suse.com/security/cve/CVE-2020-9951/ |
ubuntu
|
medium | CVE-2020-9951 medium priority: Ubuntu including 6 source packages (qtwebkit, qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 78 status rows across 13 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): DNE 41, ignored 18, not-affected 12, needs-triage 4, released 3. | https://ubuntu.com/security/CVE-2020-9951 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apple | icloud | < 11.5 | cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* |
| apple | itunes | < 12.10.9 | cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* |
| apple | safari | < 14.0 | cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* |
| apple | ipados | < 14.0 | cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* |
| apple | iphone_os | < 14.0 | cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* |
| apple | tvos | < 14.0 | cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* |
| apple | watchos | < 7.0 | cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* |
| webkit | webkitgtk\+ | <= 2.30.3 | cpe:2.3:a:webkit:webkitgtk\+:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://seclists.org/fulldisclosure/2020/Nov/18 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2020/Nov/19 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2020/Nov/20 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2020/Nov/22 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2020/11/23/3 | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202012-10 | Third Party Advisory |
| https://support.apple.com/HT211845 | Release Notes Vendor Advisory |
| https://support.apple.com/kb/HT211843 | Vendor Advisory |
| https://support.apple.com/kb/HT211844 | Vendor Advisory |
| https://support.apple.com/kb/HT211850 | Vendor Advisory |
| https://support.apple.com/kb/HT211935 | Vendor Advisory |
| https://support.apple.com/kb/HT211952 | Vendor Advisory |
| https://www.debian.org/security/2020/dsa-4797 | Third Party Advisory |