A vulnerability in the web-based management interface of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to retrieve sensitive information from an affected device. This vulnerability is due to a lack of authentication for specific endpoints of the web-based management interface on an affected device. An attacker could exploit this vulnerability by connecting to the affected device. A successful exploit could allow the attacker to gain unauthorized access to the device, enabling the recording of user credentials and traffic to and from the affected device, including VoIP calls that could be replayed.
総合評価: CVE-2024-20378 は中リスク（56.1/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.80%、74 パーセンタイル） 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 | 2026-03-31 | 0.61% | 0.80% | +0.19% |
| 2 | 2026-03-16 | 0.80% | 0.61% | -0.19% |
| 3 | 2026-01-06 | — | 0.80% | — |
EPSS の全履歴 （全 13 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 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| cisco | ip_phone_6821_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_6821_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_6841_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_6841_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_6851_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_6851_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_6851_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_6851_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_6861_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_6861_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_6861_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_6861_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_6871_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_6871_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_6871_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_6871_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_7811_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_7811_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_7811_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_7811_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_7821_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_7821_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_7821_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_7821_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_7841_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_7841_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_7841_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_7841_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_7861_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_7861_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_7861_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_7861_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_8811_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_8811_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_8841_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_8841_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_8851_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_8851_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_8851nr_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_8851nr_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_8851nr_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_8851nr_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | ip_phone_8861_with_multiplatform_firmware | < 12.0.4 | cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware:*:*:*:*:*:*:*:* |
| cisco | ip_phone_8861_with_multiplatform_firmware | 12.0.4 | cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware:12.0.4:-:*:*:*:*:*:* |
| cisco | video_phone_8875_with_multiplatform_firmware | < 2.3.1.0101 | cpe:2.3:o:cisco:video_phone_8875_with_multiplatform_firmware:*:*:*:*:*:*:*:* |