An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.
総合評価: CVE-2019-12525 は高リスク（68.4/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 24.40%、98 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 | 54.55% | 24.40% | -30.15% |
| 2 | 2026-05-28 | 54.85% | 54.55% | -0.30% |
| 3 | 2026-04-26 | — | 54.85% | — |
EPSS の全履歴 （全 54 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] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
critical | CVE-2019-12525: 1 source package rows (squid); 6 state rows across 6 repos (3.10-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 1, open 5. | https://security.alpinelinux.org/vuln/CVE-2019-12525 |
debian
|
not yet assigned | CVE-2019-12525 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-2019-12525 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2019-12525 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2019-12525/ |
ubuntu
|
medium | CVE-2019-12525 medium priority: Ubuntu including 2 source packages (squid, squid3), 12 status rows across 6 suites (bionic, cosmic, disco, trusty, upstream, xenial): DNE 6, released 4, ignored 1, needed 1. | https://ubuntu.com/security/CVE-2019-12525 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| squid-cache | squid | >= 3.3.9, <= 3.5.28 | cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* |
| squid-cache | squid | >= 4.0, <= 4.7 | cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| opensuse | leap | 15.0 | cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| fedoraproject | fedora | 29 | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 19.04 | cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* |