A vulnerability in the access control list (ACL) programming of Cisco IOS Software that is running on Cisco Catalyst 1000 Switches and Cisco Catalyst 2960L Switches could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to the use of both an IPv4 ACL and a dynamic ACL of IP Source Guard on the same interface, which is an unsupported configuration. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an ACL on the affected device. Note: Cisco documentation has been updated to reflect that this is an unsupported configuration. However, Cisco is publishing this advisory because the device will not prevent an administrator from configuring both features on the same interface. There are no plans to implement the ability to configure both features on the same interface on Cisco Catalyst 1000 or Catalyst 2960L Switches.
総合評価: CVE-2025-20137 は低リスク（23.6/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.23%、13 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 | 0.10% | 0.23% | +0.13% |
| 2 | 2026-03-03 | 0.04% | 0.10% | +0.06% |
| 3 | 2025-09-06 | — | 0.04% | — |
EPSS の全履歴 （全 5 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 |
|---|---|---|---|---|---|---|
| 4.7 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| cisco | ios | 15.2\(5a\)e | cpe:2.3:o:cisco:ios:15.2\(5a\)e:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(5b\)e | cpe:2.3:o:cisco:ios:15.2\(5b\)e:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(5c\)e | cpe:2.3:o:cisco:ios:15.2\(5c\)e:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(6\)e | cpe:2.3:o:cisco:ios:15.2\(6\)e:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(6\)e0c | cpe:2.3:o:cisco:ios:15.2\(6\)e0c:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(6\)e1 | cpe:2.3:o:cisco:ios:15.2\(6\)e1:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(6\)e2 | cpe:2.3:o:cisco:ios:15.2\(6\)e2:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(6\)e2b | cpe:2.3:o:cisco:ios:15.2\(6\)e2b:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(6\)e3 | cpe:2.3:o:cisco:ios:15.2\(6\)e3:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e | cpe:2.3:o:cisco:ios:15.2\(7\)e:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e0a | cpe:2.3:o:cisco:ios:15.2\(7\)e0a:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e0s | cpe:2.3:o:cisco:ios:15.2\(7\)e0s:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e1 | cpe:2.3:o:cisco:ios:15.2\(7\)e1:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e1a | cpe:2.3:o:cisco:ios:15.2\(7\)e1a:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e2 | cpe:2.3:o:cisco:ios:15.2\(7\)e2:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e3 | cpe:2.3:o:cisco:ios:15.2\(7\)e3:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e3k | cpe:2.3:o:cisco:ios:15.2\(7\)e3k:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e4 | cpe:2.3:o:cisco:ios:15.2\(7\)e4:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e5 | cpe:2.3:o:cisco:ios:15.2\(7\)e5:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e6 | cpe:2.3:o:cisco:ios:15.2\(7\)e6:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e7 | cpe:2.3:o:cisco:ios:15.2\(7\)e7:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e8 | cpe:2.3:o:cisco:ios:15.2\(7\)e8:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e9 | cpe:2.3:o:cisco:ios:15.2\(7\)e9:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e10 | cpe:2.3:o:cisco:ios:15.2\(7\)e10:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e11 | cpe:2.3:o:cisco:ios:15.2\(7\)e11:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7\)e12 | cpe:2.3:o:cisco:ios:15.2\(7\)e12:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7a\)e0b | cpe:2.3:o:cisco:ios:15.2\(7a\)e0b:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(7b\)e0b | cpe:2.3:o:cisco:ios:15.2\(7b\)e0b:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(8\)e | cpe:2.3:o:cisco:ios:15.2\(8\)e:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(8\)e1 | cpe:2.3:o:cisco:ios:15.2\(8\)e1:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(8\)e2 | cpe:2.3:o:cisco:ios:15.2\(8\)e2:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(8\)e3 | cpe:2.3:o:cisco:ios:15.2\(8\)e3:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(8\)e4 | cpe:2.3:o:cisco:ios:15.2\(8\)e4:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(8\)e5 | cpe:2.3:o:cisco:ios:15.2\(8\)e5:*:*:*:*:*:*:* |
| cisco | ios | 15.2\(8\)e6 | cpe:2.3:o:cisco:ios:15.2\(8\)e6:*:*:*:*:*:*:* |