CVE-2026-20086
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I. Basic Information for CVE-2026-20086
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) packets of Cisco IOS XE Wireless Controller Software for the Catalyst CW9800 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of a malformed CAPWAP packet. An attacker could exploit this vulnerability by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload unexpectedly, resulting in a DoS condition.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
缺失值处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE Wireless Controller software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Wireless Controller software是美国思科（Cisco）公司的一个无线局域网控制器。提供一个管理网络功能 Cisco IOS XE Wireless Controller software存在安全漏洞，该漏洞源于对畸形CAPWAP数据包处理不当，可能导致拒绝服务。
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 IOS XE Software | 17.14.1 | - |
II. Public POCs for CVE-2026-20086
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2026-03-25 · 13 CVEs total
| CVE-2026-20084 | 8.6 HIGH | Cisco IOS XE Software 资源管理错误漏洞 |
| CVE-2026-20012 | 8.6 HIGH | Cisco多款产品 安全漏洞 |
| CVE-2026-20125 | 7.7 HIGH | Cisco IOS和Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20004 | 7.4 HIGH | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20110 | 6.5 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20083 | 6.5 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20104 | 6.1 MEDIUM | Cisco多款产品 安全漏洞 |
| CVE-2026-20115 | 6.1 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20114 | 5.4 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20108 | 5.4 MEDIUM | Cisco Catalyst SD-WAN Manager（Cisco SD-WAN vManage） 跨站脚本漏洞 |
| CVE-2026-20113 | 5.3 MEDIUM | Cisco IOS XE Software 注入漏洞 |
| CVE-2026-20112 | 4.8 MEDIUM | Cisco IOS XE Software 跨站脚本漏洞 |
IV. Related Vulnerabilities
Same vendor: Cisco
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Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-230
- CVE-2026-1461
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Improper Handling of Missing Values in Wireshark
V. Comments for CVE-2026-20086
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