CVE-2026-20080— Cisco IEC6400 Edge Compute Appliance SSH Denial of Service Vulnerability
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I. Basic Information for CVE-2026-20080
Vulnerability Information
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Vulnerability Title
Cisco IEC6400 Edge Compute Appliance SSH Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the SSH service of Cisco IEC6400 Wireless Backhaul Edge Compute Software could allow an unauthenticated, remote attacker to cause the SSH service to stop responding. This vulnerability exists because the SSH service lacks effective flood protection. An attacker could exploit this vulnerability by initiating a denial of service (DoS) attack against the SSH port. A successful exploit could allow the attacker to cause the SSH service to be unresponsive during the period of the DoS attack. All other operations remain stable during the attack.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IEC6400 Wireless Backhaul Edge Compute Software 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IEC6400 Wireless Backhaul Edge Compute Software是美国思科（Cisco）公司的一个边缘计算设备的系统固件。 Cisco IEC6400 Wireless Backhaul Edge Compute Software存在资源管理错误漏洞，该漏洞源于SSH服务缺乏有效的洪水保护，可能导致未经验证的远程攻击者造成拒绝服务攻击。
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 Ultra-Reliable Wireless Backhaul | 1.0.0 | - |
II. Public POCs for CVE-2026-20080
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2026-01-21 · 5 CVEs total
| CVE-2026-20045 | 8.2 HIGH | Cisco Unified Communications Products Remote Code Execution Vulnerability |
| CVE-2026-20092 | 6.0 MEDIUM | Cisco Intersight Virtual Appliance Privilege Escalation Vulnerability |
| CVE-2026-20055 | 4.8 MEDIUM | Cisco Packaged Contact Center Enterprise & Cisco Unified Contact Center Enterprise Cross-S |
| CVE-2026-20109 | 4.8 MEDIUM | Cisco Packaged Contact Center Enterprise and Cisco Unified Contact Center Enterprise Cross |
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V. Comments for CVE-2026-20080
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