HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after being parsed and processed for HTTP/1.0 and HTTP/1.1. For HTTP/2 and HTTP/3, the impact is limited because the headers disappear before being parsed and processed, as if they had not been sent by the client. The fixed versions are 2.7.3, 2.6.9, 2.5.12, 2.4.22, 2.2.29, and 2.0.31.
総合評価: CVE-2023-25725 は中リスク（63.5/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 5.49%、92 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
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 | 17.54% | 5.49% | -12.04% |
| 2 | 2026-05-13 | 20.04% | 17.54% | -2.50% |
| 3 | 2026-04-18 | — | 20.04% | — |
EPSS の全履歴 （全 31 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 |
|---|---|---|---|---|---|---|
| 9.1 | 3.1 | CRITICAL |
|
3.9 | 5.2 | [email protected] |
| 9.1 | 3.1 | CRITICAL |
|
3.9 | 5.2 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-25725: 1 source package rows (haproxy); 5 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 5. | https://security.alpinelinux.org/vuln/CVE-2023-25725 |
debian
|
not yet assigned | CVE-2023-25725 not yet assigned priority: Debian including 1 source packages (haproxy), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-25725 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2023-25725 |
suse
|
critical | CVE-2023-25725 severity critical: SUSE including 9 source package names (2.0.31.3.5.391:haproxy-2.0.31-150200.11.20.1, haproxy, …), 22 product×package rows across 22 product lines (Container ses/7.1/ceph/haproxy, HPE Helion OpenStack 8, … (22 product lines)): Fixed 13, Known Not Affected 9. | https://www.suse.com/security/cve/CVE-2023-25725/ |
ubuntu
|
medium | CVE-2023-25725 medium priority: Ubuntu including 1 source packages (haproxy), 11 status rows across 11 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, trusty, upstream, xenial): released 9, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2023-25725 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| haproxy | haproxy | < 2.0.31 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| haproxy | haproxy | >= 2.1.0, < 2.2.29 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| haproxy | haproxy | >= 2.3.0, < 2.4.22 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| haproxy | haproxy | >= 2.5.0, < 2.5.12 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| haproxy | haproxy | >= 2.6.0, < 2.6.9 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| haproxy | haproxy | >= 2.7.0, < 2.7.3 | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |