strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.
総合評価: CVE-2023-26463 は中リスク（62.4/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 2.26%、81 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 | 11.54% | 2.26% | -9.27% |
| 2 | 2026-06-09 | 11.81% | 11.54% | -0.27% |
| 3 | 2026-05-27 | — | 11.81% | — |
EPSS の全履歴 （全 24 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 | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-26463: 1 source package rows (strongswan); 12 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 5. | https://security.alpinelinux.org/vuln/CVE-2023-26463 |
debian
|
unimportant | CVE-2023-26463 unimportant priority: Debian including 1 source packages (strongswan), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-26463 |
gentoo
|
normal | CVE-2023-26463: 1 GLSA(s) (202405-08), 1 atom(s) (net-vpn/strongswan); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-26463 |
suse
|
critical | CVE-2023-26463 severity critical: SUSE including 21 source package names (strongswan, strongswan-5.9.10-1.1, …), 145 product×package rows across 34 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 7, … (34 product lines)): Known Not Affected 130, Fixed 15. | https://www.suse.com/security/cve/CVE-2023-26463/ |
ubuntu
|
high | CVE-2023-26463 high priority: Ubuntu including 1 source packages (strongswan), 8 status rows across 8 suites (bionic, focal, jammy, kinetic, lunar, trusty, upstream, xenial): not-affected 6, released 2. | https://ubuntu.com/security/CVE-2023-26463 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| strongswan | strongswan | 5.9.8 | cpe:2.3:a:strongswan:strongswan:5.9.8:-:*:*:*:*:*:* |
| strongswan | strongswan | 5.9.9 | cpe:2.3:a:strongswan:strongswan:5.9.9:-:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/strongswan/strongswan/releases | Release Notes |
| https://security.netapp.com/advisory/ntap-20230517-0010/ | |
| https://www.strongswan.org/blog/2023/03/02/strongswan-vulnerability-%28cve-2023-26463%29.html | Mitigation Vendor Advisory |