Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.
総合評価: CVE-2023-46728 は中リスク(59.9/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 2.26%、84 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 | 2026-02-23 | 1.88% | 2.26% | +0.39% |
| 2 | 2025-12-28 | 2.24% | 1.88% | -0.37% |
| 3 | 2025-12-27 | — | 2.24% | — |
EPSS の全履歴 (全 26 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] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2023-46728: 1 source package rows (squid); 52 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 0, open 52. | https://security.alpinelinux.org/vuln/CVE-2023-46728 |
debian
|
not yet assigned | CVE-2023-46728 not yet assigned priority: Debian including 1 source packages (squid), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-46728 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2023-46728 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2023-46728/ |
ubuntu
|
medium | CVE-2023-46728 medium priority: Ubuntu including 2 source packages (squid, squid3), 16 status rows across 8 suites (bionic, focal, jammy, lunar, mantic, trusty, upstream, xenial): released 6, DNE 4, ignored 4, needs-triage 1, not-affected 1. | https://ubuntu.com/security/CVE-2023-46728 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| squid-cache | squid | < 6.0.1 | cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* |