OESA-2026-2759 dhcp security update

The Dynamic Host Configuration Protocol DHCP is a network management protocol used on UDP/IP networks whereby a DHCP server dynamically assigns an IP address and other network configuration parameters to each device on a network so they can communicate with other IP networks. Security Fixes: BIND...

CVE-2026-56113

A flaw was found in dhcpcd. An unauthenticated attacker on the same network link can exploit this vulnerability by sending a specially crafted DHCPv6 RENEW reply. This can lead to a Denial of Service DoS, causing the dhcpcd daemon to crash due to a heap use-after-free vulnerability...

[SECURITY] [DLA 4642-1] u-boot security update

Debian LTS Advisory DLA-4642-1 [email protected] https://www.debian.org/lts/security/ Andreas Henriksson June 23, 2026 https://wiki.debian.org/LTS Package : u-boot Version : 2021.01+dfsg-5+deb11u3 2023.01+dfsg-2+deb12u3 CVE ID : CVE-2024-42040 CVE-2026-46728 Debian Bug : 1081557 1136954...

Exploit for CVE-2026-11834

CVE-2026-11834 PoC TP-Link DHCP Option 66 Unauthenticated RC...

CVE-2026-56114

dhcpcd through 10.3.2, fixed in commit 2f00c7b, contains a one-byte stack out-of-bounds write vulnerability in dhcp6makemessage in src/dhcp6.c that allows unauthenticated same-link attackers to write beyond a fixed local buffer by serializing an oversized RFC6603 OPTIONPDEXCLUDE option body...

CVE-2026-56117

dhcpcd through 10.3.2, fixed in commit 78ea09e, contains a heap use-after-free vulnerability in the control socket handling within src/control.c that allows local unprivileged attackers to trigger memory corruption when privilege separation is disabled. Attackers can connect to the control socket...

CVE-2026-56116 dhcpcd Memory Leak DoS via IPv6 Router Advertisement Handling

dhcpcd through 10.3.2, fixed in commit 708b4a5, contains a memory leak vulnerability in the IPv6 Router Advertisement route information handling that allows an unauthenticated same-link attacker to cause denial of service by sending crafted Router Advertisements. Attackers can repeatedly send...

CVE-2026-56115

CVE-2026-56115 is associated with a one-byte stack out-of-bounds write in dhcpcd up to 10.3.2, due to a malformed DHCPv6 OPTION_PD_EXCLUDE in dhcp6_makemessage() that an unauthenticated same-link attacker can trigger via DHCPv6 ADVERTISE with IA_PD /0. An attacker can corrupt adjacent stack memor...

EUVD-2026-38492

dhcpcd through 10.3.2, fixed in commit 2f00c7b, contains a one-byte stack out-of-bounds write vulnerability in dhcp6makemessage in src/dhcp6.c that allows unauthenticated same-link attackers to write beyond a fixed local buffer by serializing an oversized RFC6603 OPTIONPDEXCLUDE option body...

EUVD-2026-38491

dhcpcd through 10.3.2, fixed in commit 5733d3c, contains a heap use-after-free vulnerability that allows unauthenticated same-link attackers to crash the daemon by sending a crafted DHCPv6 RENEW reply with RFC6603 OPTIONPDEXCLUDE and both preferred and valid lifetimes set to zero. Attackers actin...

PT-2026-51565

Name of the Vulnerable Software and Affected Versions dhcpcd versions prior to 10.3.2 Description An issue in the IPv6 Router Advertisement route information handling allows an unauthenticated attacker on the same link to cause a denial of service. By repeatedly sending crafted Router...

CVE-2026-11834

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially...

CVE-2026-11834 Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially...

CVE-2026-11834 Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially...

EUVD-2026-38339

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially...

Security update for openvswitch

This update for openvswitch fixes the following issues CVE-2026-5265: heap over-read in ICMP error response generation bsc1262498. CVE-2026-5367: heap over-read in OVN DHCPv6 client ID processing bsc1262499. Patch Instructions: To install this SUSE update use the SUSE recommended installation...

CVE-2026-11834: Improper Neutralization of Special Elements used in an OS Command

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially...

Oracle Linux 8 : dracut (ELSA-2026-26534)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-26534 advisory. 049-244.git20260529.0.1 - Refactor getucodefile Orabug: 36989953 - Revert the fixes for bugs 33676753 and 33888951 due to regressions Orabug: 35656614 - Fix ty...

AlmaLinux 8 : dracut (ALSA-2026:26534)

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:26534 advisory. dracut: dracut: Root code execution via DHCP options command injection CVE-2026-6893 Tenable has extracted the preceding description block directly from the...

AlmaLinux 9 : dracut (ALSA-2026:26533)

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:26533 advisory. dracut: dracut: Root code execution via DHCP options command injection CVE-2026-6893 Tenable has extracted the preceding description block directly from the...