The htcpHandleTstRequest function in htcp.c in Squid 2.x before 2.6.STABLE24 and 2.7 before 2.7.STABLE8, and htcp.cc in 3.0 before 3.0.STABLE24, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets to the HTCP port.
総合評価: CVE-2010-0639 は中リスク（49.3/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 30.34%、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 | 49.37% | 30.34% | -19.03% |
| 2 | 2025-07-30 | 56.16% | 49.37% | -6.79% |
| 3 | 2025-03-30 | — | 56.16% | — |
EPSS の全履歴 （全 10 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 |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2010-0639 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-2010-0639 |
gentoo
|
high | CVE-2010-0639: 1 GLSA(s) (201110-24), 1 atom(s) (net-proxy/squid); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2010-0639 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2010-0639 |
ubuntu
|
medium | CVE-2010-0639 medium priority: Ubuntu including 2 source packages (squid, squid3), 20 status rows across 10 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): released 10, ignored 4, not-affected 4, DNE 1, needs-triage 1. | https://ubuntu.com/security/CVE-2010-0639 |
: Per: http://cwe.mitre.org/data/definitions/476.html 'NULL Pointer Dereference'
Not vulnerable. This issue did not affect the versions of squid as shipped with Red Hat Enterprise Linux 3, 4, or 5. Those versions are not compiled with the support for HTCP protocol.
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| squid-cache | squid | 2.0 | cpe:2.3:a:squid-cache:squid:2.0:*:*:*:*:*:*:* |
| squid-cache | squid | 2.1 | cpe:2.3:a:squid-cache:squid:2.1:*:*:*:*:*:*:* |
| squid-cache | squid | 2.2 | cpe:2.3:a:squid-cache:squid:2.2:*:*:*:*:*:*:* |
| squid-cache | squid | 2.3 | cpe:2.3:a:squid-cache:squid:2.3:*:*:*:*:*:*:* |
| squid-cache | squid | 2.4 | cpe:2.3:a:squid-cache:squid:2.4:*:*:*:*:*:*:* |
| squid-cache | squid | 2.5 | cpe:2.3:a:squid-cache:squid:2.5:*:*:*:*:*:*:* |
| squid-cache | squid | 2.6 | cpe:2.3:a:squid-cache:squid:2.6:*:*:*:*:*:*:* |
| squid-cache | squid | 2.7 | cpe:2.3:a:squid-cache:squid:2.7:*:*:*:*:*:*:* |
| squid-cache | squid | 2.7 | cpe:2.3:a:squid-cache:squid:2.7:stable3:*:*:*:*:*:* |
| squid-cache | squid | 2.7 | cpe:2.3:a:squid-cache:squid:2.7:stable4:*:*:*:*:*:* |
| squid-cache | squid | 3.0 | cpe:2.3:a:squid-cache:squid:3.0:*:*:*:*:*:*:* |
| 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.stable11 | cpe:2.3:a:squid-cache:squid:3.0.stable11:*:*:*:*:*:*:* |
| 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.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:*:*:*:*:*:*:* |