Squid 3.x before 3.5.16 and 4.x before 4.0.8 improperly perform bounds checking, which allows remote attackers to cause a denial of service via a crafted HTTP response, related to Vary headers.
総合評価: CVE-2016-3948 は高リスク（65.2/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 35.27%、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 | 2026-06-18 | 34.46% | 35.27% | +0.80% |
| 2 | 2026-06-15 | 69.62% | 34.46% | -35.16% |
| 3 | 2026-03-04 | — | 69.62% | — |
EPSS の全履歴 （全 53 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 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-3948 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-2016-3948 |
gentoo
|
normal | CVE-2016-3948: 1 GLSA(s) (201607-01), 1 atom(s) (net-proxy/squid); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-3948 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2016-3948 |
suse
|
high | CVE-2016-3948 severity important: SUSE including 15 source package names (squid, squid-3.3.14-20.2, …), 45 product×package rows across 39 product lines (HPE Helion OpenStack 8, SUSE Liberty Linux 7, … (39 product lines)): Known Not Affected 24, Fixed 21. | https://www.suse.com/security/cve/CVE-2016-3948/ |
ubuntu
|
low | CVE-2016-3948 low priority: Ubuntu including 1 source packages (squid3), 8 status rows across 8 suites (artful, precise, trusty, upstream, wily, xenial, yakkety, zesty): ignored 4, released 2, DNE 1, not-affected 1. | https://ubuntu.com/security/CVE-2016-3948 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:-:pre1:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:-:pre2:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:-:pre3:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:-:pre4:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:-:pre5:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:-:pre6:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:-:pre7:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:rc4:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable1 | cpe:2.3:a:squid-cache:squid:3.0.stable1:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable2 | cpe:2.3:a:squid-cache:squid:3.0.stable2:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable3 | cpe:2.3:a:squid-cache:squid:3.0.stable3:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable4 | cpe:2.3:a:squid-cache:squid:3.0.stable4:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable5 | cpe:2.3:a:squid-cache:squid:3.0.stable5:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable6 | cpe:2.3:a:squid-cache:squid:3.0.stable6:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable7 | cpe:2.3:a:squid-cache:squid:3.0.stable7:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable8 | cpe:2.3:a:squid-cache:squid:3.0.stable8:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable9 | cpe:2.3:a:squid-cache:squid:3.0.stable9:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable10 | cpe:2.3:a:squid-cache:squid:3.0.stable10:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable11 | cpe:2.3:a:squid-cache:squid:3.0.stable11:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable11 | cpe:2.3:a:squid-cache:squid:3.0.stable11:rc1:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable12 | cpe:2.3:a:squid-cache:squid:3.0.stable12:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable13 | cpe:2.3:a:squid-cache:squid:3.0.stable13:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable14 | cpe:2.3:a:squid-cache:squid:3.0.stable14:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable15 | cpe:2.3:a:squid-cache:squid:3.0.stable15:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable16 | cpe:2.3:a:squid-cache:squid:3.0.stable16:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable16 | cpe:2.3:a:squid-cache:squid:3.0.stable16:rc1:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable17 | cpe:2.3:a:squid-cache:squid:3.0.stable17:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable18 | cpe:2.3:a:squid-cache:squid:3.0.stable18:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable19 | cpe:2.3:a:squid-cache:squid:3.0.stable19:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable20 | cpe:2.3:a:squid-cache:squid:3.0.stable20:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable21 | cpe:2.3:a:squid-cache:squid:3.0.stable21:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable22 | cpe:2.3:a:squid-cache:squid:3.0.stable22:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable23 | cpe:2.3:a:squid-cache:squid:3.0.stable23:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable24 | cpe:2.3:a:squid-cache:squid:3.0.stable24:*:*:*:*:*:*:* |
| squid-cache | squid | 3.0.stable25 | cpe:2.3:a:squid-cache:squid:3.0.stable25:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1 | cpe:2.3:a:squid-cache:squid:3.1:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.1 | cpe:2.3:a:squid-cache:squid:3.1.0.1:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.2 | cpe:2.3:a:squid-cache:squid:3.1.0.2:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.3 | cpe:2.3:a:squid-cache:squid:3.1.0.3:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.4 | cpe:2.3:a:squid-cache:squid:3.1.0.4:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.5 | cpe:2.3:a:squid-cache:squid:3.1.0.5:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.6 | cpe:2.3:a:squid-cache:squid:3.1.0.6:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.7 | cpe:2.3:a:squid-cache:squid:3.1.0.7:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.8 | cpe:2.3:a:squid-cache:squid:3.1.0.8:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.9 | cpe:2.3:a:squid-cache:squid:3.1.0.9:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.10 | cpe:2.3:a:squid-cache:squid:3.1.0.10:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.11 | cpe:2.3:a:squid-cache:squid:3.1.0.11:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.12 | cpe:2.3:a:squid-cache:squid:3.1.0.12:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.13 | cpe:2.3:a:squid-cache:squid:3.1.0.13:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.14 | cpe:2.3:a:squid-cache:squid:3.1.0.14:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.15 | cpe:2.3:a:squid-cache:squid:3.1.0.15:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.16 | cpe:2.3:a:squid-cache:squid:3.1.0.16:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.17 | cpe:2.3:a:squid-cache:squid:3.1.0.17:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.0.18 | cpe:2.3:a:squid-cache:squid:3.1.0.18:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.1 | cpe:2.3:a:squid-cache:squid:3.1.1:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.2 | cpe:2.3:a:squid-cache:squid:3.1.2:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.3 | cpe:2.3:a:squid-cache:squid:3.1.3:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.4 | cpe:2.3:a:squid-cache:squid:3.1.4:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.5 | cpe:2.3:a:squid-cache:squid:3.1.5:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.5.1 | cpe:2.3:a:squid-cache:squid:3.1.5.1:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.6 | cpe:2.3:a:squid-cache:squid:3.1.6:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.7 | cpe:2.3:a:squid-cache:squid:3.1.7:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.8 | cpe:2.3:a:squid-cache:squid:3.1.8:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.9 | cpe:2.3:a:squid-cache:squid:3.1.9:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.10 | cpe:2.3:a:squid-cache:squid:3.1.10:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.11 | cpe:2.3:a:squid-cache:squid:3.1.11:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.12 | cpe:2.3:a:squid-cache:squid:3.1.12:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.13 | cpe:2.3:a:squid-cache:squid:3.1.13:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.14 | cpe:2.3:a:squid-cache:squid:3.1.14:*:*:*:*:*:*:* |
| squid-cache | squid | 3.1.15 | cpe:2.3:a:squid-cache:squid:3.1.15:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.1 | cpe:2.3:a:squid-cache:squid:3.2.0.1:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.2 | cpe:2.3:a:squid-cache:squid:3.2.0.2:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.3 | cpe:2.3:a:squid-cache:squid:3.2.0.3:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.4 | cpe:2.3:a:squid-cache:squid:3.2.0.4:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.5 | cpe:2.3:a:squid-cache:squid:3.2.0.5:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.6 | cpe:2.3:a:squid-cache:squid:3.2.0.6:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.7 | cpe:2.3:a:squid-cache:squid:3.2.0.7:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.8 | cpe:2.3:a:squid-cache:squid:3.2.0.8:*:*:*:*:*:*:* |
| squid-cache | squid | 3.2.0.9 | cpe:2.3:a:squid-cache:squid:3.2.0.9:*:*:*:*:*:*:* |