A vulnerability in the SNMP implementation of could allow an authenticated, remote attacker to cause a reload of the affected system or to remotely execute code. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the affected device. The vulnerability is due to a buffer overflow in the affected code area. The vulnerability affects all versions of SNMP (versions 1, 2c, and 3). The attacker must know the SNMP read only community string (SNMP version 2c or earlier) or the user credentials (SNMPv3). An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or to cause a reload of the affected system. Only traffic directed to the affected system can be used to exploit this vulnerability.
結論預警: CVE-2017-6742 綜合評估為嚴重在野威脅(99.3/100):CVSS 技術影響為高級,利用機率偏高(EPSS 21.42%,百分位 97%) 核心證據: CISA 已知被利用漏洞目錄(KEV)已於 2023-04-19 確認在野利用,影響 Cisco / IOS and IOS XE Software,弱點類型(CWE-119),攻擊者可能未經認證遠端取得高權限管理存取。 近一日 EPSS 上升 +6.64%,被利用關注度持續升高。 強制指令: CISA 處置期限已過,應以應急修補優先立即處理。
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: Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability · CISA KEV 詳情
: 2023-04-19
: 2023-05-10
: Apply updates per vendor instructions.
EPSS 日更估計相對被利用可能性;百分位表示該 CVE 在已評分漏洞中的相對排名(越高表示相對更嚴重)。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化(新 − 舊) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 14.79% | 21.42% | +6.64% |
| 2 | 2026-05-26 | 14.73% | 14.79% | +0.06% |
| 3 | 2026-05-22 | — | 14.73% | — |
完整 EPSS 歷史 (共 57 筆)
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 8.8 | 3.0 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| URL | 標籤 |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp | Vendor Advisory |
| http://www.securityfocus.com/bid/99345 | Broken Link Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1038808 | Broken Link Third Party Advisory VDB Entry |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp | Vendor Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6742 | US Government Resource |