CVE-2019-1711— Cisco IOS XR gRPC Software Denial of Service Vulnerability
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I. Basic Information for CVE-2019-1711
Vulnerability Information
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Vulnerability Title
Cisco IOS XR gRPC Software Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of gRPC requests. An attacker could exploit this vulnerability by repeatedly sending unauthenticated gRPC requests to the affected device. A successful exploit could cause the emsd process to crash, resulting in a DoS condition. Resolved in Cisco IOS XR 6.5.1 and later.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XR 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XR是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XR中的事件管理服务守护进程(emsd)存在输入验证错误漏洞，该漏洞源于网络系统或产品未对输入的数据进行正确的验证，该漏洞源于网络系统或产品未对输入的数据进行正确的验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco IOS XR Software | unspecified ~ 6.5.1 | - |
II. Public POCs for CVE-2019-1711
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-ios-xr-dosvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2019-1711
Same Patch Batch · Cisco · 2019-04-17 · 8 CVEs total
| CVE-2018-0248 | Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities | |
| CVE-2018-0382 | Cisco Wireless LAN Controller Software Session Hijacking Vulnerability | |
| CVE-2019-1654 | Cisco Aironet Series Access Points Development Shell Access Vulnerability | |
| CVE-2019-1710 | Cisco IOS XR 64-Bit Software for Cisco ASR 9000 Series Aggregation Services Routers Networ | |
| CVE-2019-1686 | Cisco ASR 9000 Series Aggregation Services Routers ACL Bypass Vulnerability | |
| CVE-2019-1718 | Cisco Identity Services Engine SSL Renegotiation Denial of Service Vulnerability | |
| CVE-2019-1712 | Cisco IOS XR Software Protocol Independent Multicast Denial of Service Vulnerability |
IV. Related Vulnerabilities
Same product: Cisco IOS XR Software
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Cisco IOS XR Software CLI Privilege Escalation Vulnerability - CVE-2026-20074
Cisco IOS XR Software Multi-Instance Intermediate System-to- - CVE-2026-20040
Cisco IOS XR Software CLI Privilege Escalation Vulnerability - CVE-2025-20340
Cisco IOS XR Address Resolution Protocol Broadcast Storm Vul
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-20
V. Comments for CVE-2019-1711
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