CVE-2019-15262— Cisco Wireless LAN Controller Secure Shell Denial of Service Vulnerability
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I. Basic Information for CVE-2019-15262
Vulnerability Information
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Vulnerability Title
Cisco Wireless LAN Controller Secure Shell Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Secure Shell (SSH) session management for Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the SSH process is not properly deleted when an SSH connection to the device is disconnected. An attacker could exploit this vulnerability by repeatedly opening SSH connections to an affected device. A successful exploit could allow the attacker to exhaust system resources by initiating multiple SSH connections to the device that are not effectively terminated, which could result in a DoS condition.
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 Wireless LAN Controller Software 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Wireless LAN Controller（WLC）Software是美国思科（Cisco）公司的一套用于配置和管理WLC（无线局域网控制器）的软件。 Cisco WLC Software 8.5.140.0及之前版本中的Secure Shell会话管理存在输入验证错误漏洞，该漏洞源于当SSH连接断开时，程序没有正确删除SSH会话。远程攻击者可通过重复打开SSH连接利用该漏洞造成拒绝服务。
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 Wireless LAN Controller (WLC) | unspecified ~ n/a | - |
II. Public POCs for CVE-2019-15262
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-wlc-ssh-dosvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2019-15262
Same Patch Batch · Cisco · 2019-10-16 · 41 CVEs total
| CVE-2019-15241 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15251 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15247 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15248 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15246 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15244 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15245 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15242 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15243 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15240 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-15250 | Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities | |
| CVE-2019-12705 | Cisco Expressway Series and TelePresence Video Communication Server Cross-Site Scripting V | |
| CVE-2019-12708 | Cisco SPA100 Series Analog Telephone Adapters Administrative Credentials Information Discl | |
| CVE-2019-12718 | Cisco Small Business Smart and Managed Switches Cross-Site Scripting Vulnerability | |
| CVE-2019-12703 | Cisco SPA122 ATA with Router Devices DHCP Services Cross-Site Scripting Vulnerability | |
| CVE-2019-12704 | Cisco SPA100 Series Analog Telephone Adapters Web-Based Management Interface File Disclosu | |
| CVE-2019-12638 | Cisco Identity Services Engine Stored Cross-Site Scripting Vulnerability | |
| CVE-2019-12702 | Cisco SPA100 Series Analog Telephone Adapters Reflected Cross-Site Scripting Vulnerability | |
| CVE-2019-12636 | Cisco Small Business Smart and Managed Switches Cross-Site Request Forgery Vulnerability | |
| CVE-2019-12637 | Cisco Identity Services Engine Multiple Stored Cross-Site Scripting Vulnerabilities |
Showing top 20 of 41 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Wireless LAN Controller (WLC)
- CVE-2023-20251
Cisco Wireless LAN Controller 缓冲区错误漏洞 - CVE-2022-20769
Cisco Wireless LAN Controller AireOS Software FIPS Mode Deni - CVE-2022-20695
Cisco Wireless LAN Controller Management Interface Authentic - CVE-2021-1419
Cisco Access Points SSH Management Privilege Escalation Vuln - CVE-2020-3492
Cisco IOS XE Software for Catalyst 9800 Series and Cisco Air
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-2019-15262
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