A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges. The vulnerability is due to incorrect bounds checking of certain values in packets that are destined for UDP port 18999 of an affected device. An attacker could exploit this vulnerability by sending malicious packets to an affected device. When the packets are processed, an exploitable buffer overflow condition may occur. A successful exploit could allow the attacker to execute arbitrary code on the affected device with elevated privileges. The attacker could also leverage this vulnerability to cause the device to reload, causing a temporary DoS condition while the device is reloading. The malicious packets must be destined to and processed by an affected device. Traffic transiting a device will not trigger the vulnerability. Cisco Bug IDs: CSCvf73881.
総合評価: CVE-2018-0151 は在野悪用が確認された重大脅威(94.1/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 5.85%、91 パーセンタイル) 根拠: CISA KEV に登録(追加日 2022-03-03)。Cisco / IOS and IOS XE Software が対象で、弱点分類 CWE-119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 and Cisco IOS XE Software Quality of Service Remote Code Execution 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 | 2026-06-02 | 7.74% | 5.85% | -1.89% |
| 2 | 2026-05-30 | 5.85% | 7.74% | +1.89% |
| 3 | 2026-05-24 | — | 5.85% | — |
EPSS の全履歴 (全 40 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| URL | タグ |
|---|---|
| http://www.securityfocus.com/bid/103540 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1040582 | Third Party Advisory VDB Entry |
| https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03 | Third Party Advisory US Government Resource |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-qos | Mitigation Vendor Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0151 | US Government Resource |