The Net::HTTPS module in libwww-perl (LWP) before 6.00, as used in WWW::Mechanize, LWP::UserAgent, and other products, when running in environments that do not set the If-SSL-Cert-Subject header, does not enable full validation of SSL certificates by default, which allows remote attackers to spoof servers via man-in-the-middle (MITM) attacks involving hostnames that are not properly validated. NOTE: it could be argued that this is a design limitation of the Net::HTTPS API, and separate implementations should be independently assigned CVE identifiers for not working around this limitation. However, because this API was modified within LWP, a single CVE identifier has been assigned.
総合評価: CVE-2011-0633 は中リスク（52.7/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 4.25%、90 パーセンタイル） 根拠: 直近 1 日で EPSS が +4.11% 上昇。悪用への関心が高まっている可能性があります。 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 | 2026-06-15 | 0.14% | 4.25% | +4.11% |
| 2 | 2025-03-30 | 0.27% | 0.14% | -0.13% |
| 3 | 2025-03-29 | — | 0.27% | — |
EPSS の全履歴 （全 6 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 |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2011-0633 low priority: Debian including 1 source packages (libwww-perl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2011-0633 |
gentoo
|
normal | CVE-2011-0633: 1 GLSA(s) (201402-04), 1 atom(s) (dev-perl/libwww-perl); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-0633 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2011-0633 |
ubuntu
|
medium | CVE-2011-0633 medium priority: Ubuntu including 1 source packages (libwww-perl), 7 status rows across 7 suites (dapper, hardy, lucid, maverick, natty, oneiric, upstream): ignored 5, not-affected 1, released 1. | https://ubuntu.com/security/CVE-2011-0633 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| gisle_aas | libwww-perl | 0.01 | cpe:2.3:a:gisle_aas:libwww-perl:0.01:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 0.02 | cpe:2.3:a:gisle_aas:libwww-perl:0.02:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 0.03 | cpe:2.3:a:gisle_aas:libwww-perl:0.03:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 0.04 | cpe:2.3:a:gisle_aas:libwww-perl:0.04:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.00 | cpe:2.3:a:gisle_aas:libwww-perl:5.00:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.01 | cpe:2.3:a:gisle_aas:libwww-perl:5.01:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.02 | cpe:2.3:a:gisle_aas:libwww-perl:5.02:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.03 | cpe:2.3:a:gisle_aas:libwww-perl:5.03:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.04 | cpe:2.3:a:gisle_aas:libwww-perl:5.04:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.05 | cpe:2.3:a:gisle_aas:libwww-perl:5.05:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.06 | cpe:2.3:a:gisle_aas:libwww-perl:5.06:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.07 | cpe:2.3:a:gisle_aas:libwww-perl:5.07:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.08 | cpe:2.3:a:gisle_aas:libwww-perl:5.08:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.09 | cpe:2.3:a:gisle_aas:libwww-perl:5.09:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.10 | cpe:2.3:a:gisle_aas:libwww-perl:5.10:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.11 | cpe:2.3:a:gisle_aas:libwww-perl:5.11:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.12 | cpe:2.3:a:gisle_aas:libwww-perl:5.12:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.13 | cpe:2.3:a:gisle_aas:libwww-perl:5.13:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.14 | cpe:2.3:a:gisle_aas:libwww-perl:5.14:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.15 | cpe:2.3:a:gisle_aas:libwww-perl:5.15:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.16 | cpe:2.3:a:gisle_aas:libwww-perl:5.16:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.17 | cpe:2.3:a:gisle_aas:libwww-perl:5.17:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.18 | cpe:2.3:a:gisle_aas:libwww-perl:5.18:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.18_03 | cpe:2.3:a:gisle_aas:libwww-perl:5.18_03:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.18_04 | cpe:2.3:a:gisle_aas:libwww-perl:5.18_04:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.18_05 | cpe:2.3:a:gisle_aas:libwww-perl:5.18_05:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.19 | cpe:2.3:a:gisle_aas:libwww-perl:5.19:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.20 | cpe:2.3:a:gisle_aas:libwww-perl:5.20:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.21 | cpe:2.3:a:gisle_aas:libwww-perl:5.21:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.22 | cpe:2.3:a:gisle_aas:libwww-perl:5.22:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.30 | cpe:2.3:a:gisle_aas:libwww-perl:5.30:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.31 | cpe:2.3:a:gisle_aas:libwww-perl:5.31:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.32 | cpe:2.3:a:gisle_aas:libwww-perl:5.32:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.33 | cpe:2.3:a:gisle_aas:libwww-perl:5.33:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.34 | cpe:2.3:a:gisle_aas:libwww-perl:5.34:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.35 | cpe:2.3:a:gisle_aas:libwww-perl:5.35:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.36 | cpe:2.3:a:gisle_aas:libwww-perl:5.36:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.41 | cpe:2.3:a:gisle_aas:libwww-perl:5.41:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.42 | cpe:2.3:a:gisle_aas:libwww-perl:5.42:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.43 | cpe:2.3:a:gisle_aas:libwww-perl:5.43:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.44 | cpe:2.3:a:gisle_aas:libwww-perl:5.44:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.45 | cpe:2.3:a:gisle_aas:libwww-perl:5.45:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.46 | cpe:2.3:a:gisle_aas:libwww-perl:5.46:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.47 | cpe:2.3:a:gisle_aas:libwww-perl:5.47:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.48 | cpe:2.3:a:gisle_aas:libwww-perl:5.48:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.49 | cpe:2.3:a:gisle_aas:libwww-perl:5.49:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.50 | cpe:2.3:a:gisle_aas:libwww-perl:5.50:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.51 | cpe:2.3:a:gisle_aas:libwww-perl:5.51:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.52 | cpe:2.3:a:gisle_aas:libwww-perl:5.52:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53 | cpe:2.3:a:gisle_aas:libwww-perl:5.53:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53_90 | cpe:2.3:a:gisle_aas:libwww-perl:5.53_90:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53_91 | cpe:2.3:a:gisle_aas:libwww-perl:5.53_91:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53_92 | cpe:2.3:a:gisle_aas:libwww-perl:5.53_92:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53_93 | cpe:2.3:a:gisle_aas:libwww-perl:5.53_93:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53_94 | cpe:2.3:a:gisle_aas:libwww-perl:5.53_94:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53_95 | cpe:2.3:a:gisle_aas:libwww-perl:5.53_95:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53_96 | cpe:2.3:a:gisle_aas:libwww-perl:5.53_96:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.53_97 | cpe:2.3:a:gisle_aas:libwww-perl:5.53_97:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.60 | cpe:2.3:a:gisle_aas:libwww-perl:5.60:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.61 | cpe:2.3:a:gisle_aas:libwww-perl:5.61:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.62 | cpe:2.3:a:gisle_aas:libwww-perl:5.62:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.63 | cpe:2.3:a:gisle_aas:libwww-perl:5.63:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.64 | cpe:2.3:a:gisle_aas:libwww-perl:5.64:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.65 | cpe:2.3:a:gisle_aas:libwww-perl:5.65:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.66 | cpe:2.3:a:gisle_aas:libwww-perl:5.66:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.67 | cpe:2.3:a:gisle_aas:libwww-perl:5.67:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.68 | cpe:2.3:a:gisle_aas:libwww-perl:5.68:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.69 | cpe:2.3:a:gisle_aas:libwww-perl:5.69:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.70 | cpe:2.3:a:gisle_aas:libwww-perl:5.70:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.71 | cpe:2.3:a:gisle_aas:libwww-perl:5.71:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.72 | cpe:2.3:a:gisle_aas:libwww-perl:5.72:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.73 | cpe:2.3:a:gisle_aas:libwww-perl:5.73:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.74 | cpe:2.3:a:gisle_aas:libwww-perl:5.74:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.75 | cpe:2.3:a:gisle_aas:libwww-perl:5.75:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.76 | cpe:2.3:a:gisle_aas:libwww-perl:5.76:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.77 | cpe:2.3:a:gisle_aas:libwww-perl:5.77:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.78 | cpe:2.3:a:gisle_aas:libwww-perl:5.78:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.79 | cpe:2.3:a:gisle_aas:libwww-perl:5.79:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.800 | cpe:2.3:a:gisle_aas:libwww-perl:5.800:*:*:*:*:*:*:* |
| gisle_aas | libwww-perl | 5.801 | cpe:2.3:a:gisle_aas:libwww-perl:5.801:*:*:*:*:*:*:* |