CVE-2026-20084

A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause BOOTP packets to be forwarded between VLANs, resulting in a denial of service DoS condition. This vulnerability is due to improper handling of BOOTP packets on Cisco...

CVE-2026-20084

CVE-2026-20084 describes a vulnerability in the DHCP snooping feature of Cisco IOS XE Software affecting Cisco Catalyst 9000 Series switches. The issue arises from improper handling of BOOTP packets, which could allow an unauthenticated remote attacker to forward BOOTP packets between VLANs. The ...

CVE-2026-20084

A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause BOOTP packets to be forwarded between VLANs, resulting in a denial of service DoS condition. This vulnerability is due to improper handling of BOOTP packets on Cisco...

Cisco IOS XE Software for Catalyst 9000 Series Switches DHCP Snooping Denial of Service Vulnerability

A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause BOOTP packets to be forwarded between VLANs, resulting in a denial of service DoS condition. This vulnerability is due to improper handling of BOOTP packets on Cisco...

Cisco IOS XE Software for Catalyst 9000 Series Switches DoS (cisco-sa-cat9k-PtmD7bgy)

According to its self-reported version, Cisco IOS-XE Software is affected by a vulnerability. - A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become...

CVE-2025-20311

A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become blocked and drop all outbound traffic. This vulnerability is due to improper handling of crafte...

CVE-2025-20311

CVE-2025-20311 affects Cisco IOS XE Software for Catalyst 9000 Series Switches. The root cause is improper handling of crafted Ethernet frames, enabling an unauthenticated adjacent attacker to cause an egress port to block and drop all outbound traffic, resulting in DoS. The advisory notes that a...

CVE-2022-20856

A vulnerability in the processing of Control and Provisioning of Wireless Access Points CAPWAP Mobility messages in Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected...

CVE-2022-20847

A vulnerability in the DHCP processing functionality of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. This vulnerability is due to the improper processing of DHCP messages. An...

PT-2022-6086 · Cisco · Cisco Ios Xe Wireless Controller +1

Name of the Vulnerable Software and Affected Versions: Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family affected versions not specified Description: A vulnerability in the processing of Control and Provisioning of Wireless Access Points CAPWAP Mobility messages could allow a...

CVE-2022-20684

A vulnerability in Simple Network Management Protocol SNMP trap generation for wireless clients of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause an affected device to unexpectedly reload, resulting in a denial of...

Cisco多款产品 缓冲区错误漏洞

Cisco IOS XE and Cisco Catalyst 9000 are both products of Cisco, Inc.Cisco IOS XE is an operating system. A single operating system for enterprise wired and wireless access, aggregation, core, and WAN, Cisco IOS XE reduces business and network complexity. The Cisco Catalyst 9000 is a switch. A...

CVE-2021-1453

A vulnerability in the software image verification functionality of Cisco IOS XE Software for the Cisco Catalyst 9000 Family of switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. The vulnerability is due to an improper check in the code functi...

The vulnerability of the mDNS protocol in the Cisco IOS XE operating system for Cisco Catalyst 9000 Series network devices allows a attacker to induce a service failure.

The vulnerability of the mDNS protocol in Cisco IOS XE operating systems and Cisco Catalyst 9000 Series networking devices is related to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to cause service interruptions...

The vulnerability of the WLAN Local Profiling function in the Cisco IOS XE operating system of Cisco Catalyst 9000 Series network devices allows a hacker to induce a service failure.

The vulnerability of the WLAN Local Profiling function in the Cisco IOS XE operating system and Cisco Catalyst 9000 Series network devices is related to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to cause service interruptions...

CVE-2020-3429

A vulnerability in the WPA2 and WPA3 security implementation of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause denial of service DoS condition on an affected device. The vulnerability is due to incorrect pack...

PT-2020-4164 · Cisco · Cisco Ios Xe Wireless Controller +1

Name of the Vulnerable Software and Affected Versions: Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family affected versions not specified Description: A vulnerability in the WLAN Local Profiling feature could allow an unauthenticated, adjacent attacker to cause a denial ...