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CVE-2021-1439— Cisco Aironet Access Points FlexConnect Multicast DNS Denial of Service Vulnerability

CVSS 7.4 · High EPSS 0.11% · P28
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I. Basic Information for CVE-2021-1439

Vulnerability Information
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Vulnerability Title
Cisco Aironet Access Points FlexConnect Multicast DNS Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of incoming mDNS traffic. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device through a wireless network that is configured in FlexConnect local switching mode or through a wired network on a configured mDNS VLAN. A successful exploit could allow the attacker to cause the access point (AP) to reboot, resulting in a DoS condition.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Aironet Series Access Points Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Aironet Series Access Points Software是美国思科（Cisco）公司的一套使用在Aironet无线接入点设备中的软件。 Cisco Aironet Series Access Points Software 存在安全漏洞，该漏洞允许未经身份验证的相邻攻击者可利用该漏洞在受影响的设备上造成拒绝服务。
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

VendorProductAffected VersionsCPESubscribe
CiscoCisco Aironet Access Point Software (IOS XE Controller) n/a -

II. Public POCs for CVE-2021-1439

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III. Intelligence Information for CVE-2021-1439

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Same Patch Batch · Cisco · 2021-03-24 · 45 CVEs total

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CVE-2021-14719.9 CRITICALCisco Jabber Desktop and Mobile Client Software Vulnerabilities
CVE-2021-14699.9 CRITICALCisco Jabber Desktop and Mobile Client Software Vulnerabilities
CVE-2021-13738.6 HIGHCisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Se
CVE-2021-14468.6 HIGHCisco IOS XE Software DNS NAT Protocol Application Layer Gateway Denial of Service Vulnera
CVE-2021-14518.1 HIGHCisco IOS XE Software Easy Virtual Switching System Arbitrary Code Execution Vulnerability
CVE-2021-14338.1 HIGHCisco IOS XE SD-WAN Software vDaemon Buffer Overflow Vulnerability
CVE-2021-13927.8 HIGHCisco IOS and IOS XE Software Common Industrial Protocol Privilege Escalation Vulnerabili
CVE-2021-14377.5 HIGHCisco Aironet Access Points FlexConnect Upgrade Information Disclosure Vulnerability
CVE-2021-14317.5 HIGHCisco IOS XE SD-WAN Software vDaemon Denial of Service Vulnerability
CVE-2021-14037.4 HIGHCisco IOS XE Software Web UI Cross-Site WebSocket Hijacking Vulnerability
CVE-2021-13527.4 HIGHCisco IOS XE Software DECnet Phase IV/OSI Denial of Service Vulnerability
CVE-2021-14327.3 HIGHCisco IOS XE SD-WAN Software Arbitrary Command Execution Vulnerability
CVE-2021-14536.8 MEDIUMCisco IOS XE Software for the Catalyst 9000 Family Arbitrary Code Execution Vulnerability
CVE-2021-13986.8 MEDIUMCisco IOS XE Software Arbitrary Code Execution Vulnerability
CVE-2021-14526.8 MEDIUMCisco IOS XE ROM Monitor Software for Cisco Industrial Switches OS Command Injection Vulne
CVE-2021-14496.7 MEDIUMCisco Access Point Software Arbitrary Code Execution Vulnerability
CVE-2021-14416.7 MEDIUMCisco IOS XE Software Hardware Initialization Routines Arbitrary Code Execution Vulnerabil

Showing top 20 of 45 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Aironet Access Point Software (IOS XE Controller)
Same vendor: Cisco
Same weakness: CWE-120

V. Comments for CVE-2021-1439

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