A correctness issue was addressed with improved checks. This issue is fixed in Safari 26, iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.
総合評価: CVE-2025-43342 は中リスク（56.1/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 0.70%、48 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 | 0.55% | 0.70% | +0.14% |
| 2 | 2026-06-01 | 0.47% | 0.55% | +0.08% |
| 3 | 2026-05-21 | — | 0.47% | — |
EPSS の全履歴 （全 10 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
end-of-life | CVE-2025-43342 end-of-life priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 7, open 3. | https://security-tracker.debian.org/tracker/CVE-2025-43342 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2025-43342 |
suse
|
high | CVE-2025-43342 severity important: SUSE including 112 source package names (2.2.0-4.55:gpg2-2.4.4-slfo.1.1_2.1, 2.2.1-7.2:gpg2-2.4.4-slfo.1.1_2.1, …), 451 product×package rows across 70 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (70 product lines)): Fixed 433, First Fixed 18. | https://www.suse.com/security/cve/CVE-2025-43342/ |
ubuntu
|
medium | CVE-2025-43342 medium priority: Ubuntu including 4 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk), 30 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): ignored 12, DNE 10, released 5, needs-triage 3. | https://ubuntu.com/security/CVE-2025-43342 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apple | safari | < 26.0 | cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* |
| apple | ipados | < 18.7 | cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* |
| apple | iphone_os | < 18.7 | cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* |
| apple | macos | < 26.0 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| apple | tvos | < 26.0 | cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* |
| apple | visionos | < 26.0 | cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* |
| apple | watchos | < 26.0 | cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* |
| webkitgtk | webkitgtk | < 2.48.7 | cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:* |
| wpewebkit | wpe_webkit | < 2.48.7 | cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://support.apple.com/en-us/125108 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125109 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125110 | |
| https://support.apple.com/en-us/125113 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125114 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125115 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/125116 | Release Notes Vendor Advisory |
| http://seclists.org/fulldisclosure/2025/Sep/49 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2025/Sep/53 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2025/Sep/57 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2025/Sep/59 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2025/09/22/3 | Mailing List Third Party Advisory |