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...

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 ...

PT-2026-27790

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Software affected versions not specified Description A flaw exists in the DHCP snooping feature that may allow a remote attacker to forward BOOTP packets between VLANs, leading to a denial of service DoS. This is caused by imprope...

EUVD-2015-7977

Malware in sbrugna...

EUVD-2025-13895

Malicious code in bioql PyPI...

EUVD-2025-10536

Malicious code in bioql PyPI...

EUVD-2024-17974

Malicious code in bioql PyPI...

EUVD-2024-18195

Malicious code in bioql PyPI...

CVE-2025-20162

A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service DoS condition. This vulnerability is due to improper handling of DHCP request packets. An...

CVE-2025-20162

A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service DoS condition. This vulnerability is due to improper handling of DHCP request packets. An...

CVE-2025-20162

CVE-2025-20162 affects Cisco IOS XE Software DHCP Snooping. A vulnerability due to improper handling of DHCP REQUEST packets can let an unauthenticated remote attacker wedge an interface queue, causing a DoS. Exploitation can use unicast or broadcast DHCP packets on a VLAN without DHCP snooping e...

CVE-2025-20162

A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service DoS condition. This vulnerability is due to improper handling of DHCP request packets. An...

CVE-2025-20162

A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service DoS condition. This vulnerability is due to improper handling of DHCP request packets. An...

Cisco IOS XE Software DHCP Snooping Denial of Service Vulnerability

A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service DoS condition. This vulnerability is due to improper handling of DHCP request packets. An...

PT-2025-20254 · Cisco · Cisco Ios Xe

Name of the Vulnerable Software and Affected Versions: Cisco IOS XE Software affected versions not specified Description: A vulnerability in the DHCP snooping security feature could allow an unauthenticated, remote attacker to cause a full interface queue wedge, resulting in a denial of service D...

CVE-2025-21591

A Buffer Access with Incorrect Length Value vulnerability in the jdhcpd daemon of Juniper Networks Junos OS, when DHCP snooping is enabled, allows an unauthenticated, adjacent, attacker to send a DHCP packet with a malformed DHCP option to cause jdhcp to crash creating a Denial of Service DoS...

CVE-2025-21591

A Buffer Access with Incorrect Length Value vulnerability in the jdhcpd daemon of Juniper Networks Junos OS, when DHCP snooping is enabled, allows an unauthenticated, adjacent, attacker to send a DHCP packet with a malformed DHCP option to cause jdhcp to crash creating a Denial of Service DoS...

CVE-2025-21591 Junos OS: An unauthenticated adjacent attacker sending a malformed DHCP packet causes jdhcpd to crash

A Buffer Access with Incorrect Length Value vulnerability in the jdhcpd daemon of Juniper Networks Junos OS, when DHCP snooping is enabled, allows an unauthenticated, adjacent, attacker to send a DHCP packet with a malformed DHCP option to cause jdhcp to crash creating a Denial of Service DoS...