BigBlueButton is an open source web conferencing system. This vulnerability only affects release candidates of BigBlueButton 2.4. The attacker can start a subscription for poll results before starting an anonymous poll, and use this subscription to see individual responses in the anonymous poll. The attacker had to be a meeting presenter. This issue is patched in version 2.4.0. There are no workarounds.
総合評価: CVE-2022-41964 は低リスク(37.5/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.55%、42 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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 | 0.34% | 0.55% | +0.21% |
| 2 | 2025-12-17 | 0.12% | 0.34% | +0.22% |
| 3 | 2025-11-21 | — | 0.12% | — |
EPSS の全履歴 (全 9 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 |
|---|---|---|---|---|---|---|
| 5.7 | 3.1 | MEDIUM |
|
2.1 | 3.6 | [email protected] |
| 5.7 | 3.1 | MEDIUM |
|
2.1 | 3.6 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:alpha1:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:alpha2:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta1:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta2:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta3:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta4:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc1:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc2:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc3:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc4:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc5:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc6:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc7:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.0 | Release Notes Third Party Advisory |
| https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-fgmj-rx7j-fqr4 | Patch Third Party Advisory |