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...

Vulnerabilities fixed in Cisco IOS XE Software

Cisco has fixed vulnerabilities in Cisco IOS XE Software, specifically for several products such as Catalyst 9000 Series Switches, Catalyst CW9800 Family, and Cisco Meraki. The vulnerabilities include several issues, such as a memory leak in the IKEv2 implementation, vulnerabilities in the DHCP...

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...

EUVD-2021-6920

Malicious code in bioql PyPI...

EUVD-2022-25934

Malicious code in bioql PyPI...

EUVD-2022-26060

Malicious code in bioql PyPI...

EUVD-2022-26097

Malicious code in bioql PyPI...

EUVD-2022-25931

Malicious code in bioql PyPI...

Cisco Catalyst 9000 Series Switches Denial of Service Vulnerability

A vulnerability in Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service DoS condition on the control plane of an affected device. This vulnerability is due to improper handling of frames with VLAN tag information. An attacker could exploit this...

Cisco IOS XE Software Wireless Controller for the Catalyst 9000 Family CAPWAP Mobility DoS (cisco-sa-c9800-mob-dos-342YAc6J)

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...

Cisco IOS XE Software Wireless Controller for the Catalyst 9000 Family SNMP Information Disclosure (cisco-sa-cwlc-snmpidv-rnyyQzUZ)

According to its self-reported version, Cisco IOS-XE Software is affected by an information disclosure vulnerability. Due to insufficient restrictions in the implementation of the simple network management protocol, a remote, authenticated attacker could retrieve service set identifier SSID...

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...

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...

Race condition

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...

CVE-2022-20856 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Mobility Denial of Service Vulnerability

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 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family DHCP Processing Denial of Service Vulnerability

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...

CVE-2022-20847

Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family is affected by a DHCP processing vulnerability that can be exploited by unauthenticated, remote attackers sending malformed DHCP messages to cause a reload and DoS. Root cause: improper DHCP message handling in the WLC softwar...

Cisco IOS XE Software Wireless Controller for the Catalyst 9000 Family DHCP Processing DoS (cisco-sa-wlc-dhcp-dos-76pCjPxK)

According to its self-reported version, Cisco IOS-XE Software is affected by a denial of service DoS vulnerability. A remote, unauthenticated attacker can send malicious DHCP packets to a device with DHCP TLV caching enabled, causing the device to reload. Please see the included Cisco BIDs and...

Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family DHCP Processing Denial of Service Vulnerability

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...

Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Mobility Denial of Service Vulnerability

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...