CVE-2020-3262— Cisco Wireless LAN Controller CAPWAP Denial of Service Vulnerability
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I. Basic Information for CVE-2020-3262
Vulnerability Information
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Vulnerability Title
Cisco Wireless LAN Controller CAPWAP Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol handler of 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 is due to insufficient validation of CAPWAP packets. 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 restart, resulting 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中的Control and Provisioning of Wireless Access Points(CAPWAP)协议处理器存在输入验证错误漏洞，该漏洞源于程序没有充分验证CAPWAP数据包。攻击者可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 Aironet Access Point Software | n/a | - |
II. Public POCs for CVE-2020-3262
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-capwap-dos-Y2sD9uEwvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3262
Same Patch Batch · Cisco · 2020-04-15 · 17 CVEs total
| CVE-2020-3161 | Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability | |
| CVE-2020-3162 | Cisco IoT Field Network Director Denial of Service Vulnerability | |
| CVE-2020-3177 | Cisco Unified Communications Manager Path Traversal Vulnerability | |
| CVE-2020-3194 | Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne | |
| CVE-2020-3239 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3240 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3243 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3247 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3248 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3249 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3250 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3251 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3252 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3260 | Cisco Aironet Series Access Points Client Packet Processing Denial of Service Vulnerabilit | |
| CVE-2020-3261 | Cisco Mobility Express Software Cross-Site Request Forgery Vulnerability | |
| CVE-2020-3273 | Cisco Wireless LAN Controller 802.11 Generic Advertisement Service Denial of Service Vulne |
IV. Related Vulnerabilities
Same product: Cisco Aironet Access Point Software
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-2020-3262
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