A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software running on certain models of Cisco Catalyst Switches could allow an authenticated, remote attacker to cause a denial of service (DoS) condition, aka a GET MIB Object ID Denial of Service Vulnerability. The vulnerability is due to a condition that could occur when the affected software processes an SNMP read request that contains a request for the ciscoFlashMIB object ID (OID). An attacker could trigger this vulnerability by issuing an SNMP GET request for the ciscoFlashMIB OID on an affected device. A successful exploit could cause the affected device to restart due to a SYS-3-CPUHOG. This vulnerability affects the following Cisco devices if they are running a vulnerable release of Cisco IOS Software and are configured to use SNMP Version 2 (SNMPv2) or SNMP Version 3 (SNMPv3): Cisco Catalyst 2960-L Series Switches, Cisco Catalyst Digital Building Series Switches 8P, Cisco Catalyst Digital Building Series Switches 8U. Cisco Bug IDs: CSCvd89541.
総合評価: CVE-2018-0161 は在野での悪用が確認済み(76.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.91%、75 パーセンタイル) 根拠: CISA KEV に登録(追加日 2022-03-03)。Cisco / IOS Software が対象で、弱点分類 CWE-399の悪用が確認されています。未認証でリモート管理権限を奪取されるリスクが極めて高い。 推奨対応: CISA の対応期限を過ぎています。緊急のパッチ適用を最優先に検討してください。
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。
: Cisco IOS Software Resource Management Errors Vulnerability · CISA KEV の詳細
: 2022-03-03
: 2022-03-17
: Apply updates per vendor instructions.
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 | 2026-03-07 | 0.67% | 0.91% | +0.24% |
| 2 | 2026-02-18 | 1.71% | 0.67% | -1.04% |
| 3 | 2025-12-08 | — | 1.71% | — |
EPSS の全履歴 (全 20 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 |
|---|---|---|---|---|---|---|
| 6.3 | 3.1 | MEDIUM |
|
1.8 | 4.0 | [email protected] |
| 6.3 | 3.1 | MEDIUM |
|
1.8 | 4.0 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 6.3 | 2.0 | MEDIUM |
|
6.8 | 6.9 | [email protected] |
| URL | タグ |
|---|---|
| http://www.securityfocus.com/bid/103573 | Broken Link Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1040589 | Broken Link Third Party Advisory VDB Entry |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-snmp | Mitigation Vendor Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0161 | US Government Resource |