CVE-2026-56114

A flaw was found in dhcpcd. An unauthenticated attacker on the same network link could exploit a one-byte stack out-of-bounds write vulnerability in the dhcp6makemessage function. By sending a specially crafted DHCPv6 ADVERTISE message with an oversized option, the attacker can write beyond a...

CVE-2026-56115

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-2026-38494

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-2026-56114 dhcpcd Stack Out-of-Bounds Write in dhcp6_makemessage()

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-2026-56114

CVE-2026-56114 affects dhcpcd up to 10.3.2; the issue is a one-byte stack out-of-bounds write in dhcp6_makemessage() caused by serializing an oversized RFC6603 OPTION_PD_EXCLUDE body in a crafted DHCPv6 ADVERTISE with IA_PD IAPREFIX /0. The vulnerability can allow an unauthenticated same-link att...

CVE-2026-56113 dhcpcd Heap Use-After-Free in dhcp6_deprecateaddrs via DHCPv6 RENEW

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...

CVE-2026-56113

Summary of CVE-2026-56113 : The dhcpcd project (up to version 10.3.2) contains a heap use-after-free vulnerability in the DHCPv6 path. Specifically, in dhcp6_deprecateaddrs(), when processing a crafted DHCPv6 RENEW reply (using RFC6603 OPTION_PD_EXCLUDE) with both the preferred and valid lifetime...

[SECURITY] [DLA 4625-1] dnsmasq security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4625-1 [email protected] https://www.debian.org/lts/security/ Arnaud Rebillout June 10, 2026 https://wiki.debian.org/LTS -...

TencentOS Server 4: dnsmasq (TSSA-2026:0344)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0344 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

Security update for busybox (important)

openSUSE security update: security update for busybox ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:20883-1 Rating: important References: bsc1263989 Cross-References: CVE-2026-29004 CVSS scores: CVE-2026-29004 SUSE : 8.1...

OPENSUSE-SU-2026:20883-1 Security update for busybox

This update for busybox fixes the following issue - CVE-2026-29004: a crafted DHCPv6 response can lead to a heap buffer overflow in the DHCPv6 client bsc1263989...

SUSE-SU-2026:22020-1 Security update for busybox

This update for busybox fixes the following issue - CVE-2026-29004: a crafted DHCPv6 response can lead to a heap buffer overflow in the DHCPv6 client bsc1263989...

SUSE SLES15 Security Update : busybox (SUSE-SU-2026:2204-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:2204-1 advisory. This update for busybox fixes the following issue - CVE-2026-29004: a crafted DHCPv6 response can lead to a heap buffer overflow in the DHCP...

Important: Red Hat Security Advisory: ovn25.09 security update

An update for ovn25.09 is now available for Fast Datapath for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

RHEL 10 : ovn25.09 (RHSA-2026:22111)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:22111 advisory. OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add...

dnsmasq security update

An update is available for dnsmasq. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The dnsmasq packages contain Dnsmasq, a lightweight DNS Domain Name Server...

RLSA-2026:20589 Important: dnsmasq security update

The dnsmasq packages contain Dnsmasq, a lightweight DNS Domain Name Server forwarder and DHCP Dynamic Host Configuration Protocol server. Security Fixes: dnsmasq: dnsmasq: heap buffer overflow in cache via NAMEESCAPE expansion CVE-2026-2291 dnsmasq: NSEC bitmap parsing infinite loop CVE-2026-4890...

dnsmasq security update

An update is available for dnsmasq. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The dnsmasq packages contain Dnsmasq, a lightweight DNS Domain Name Server...

Amazon Linux 2 : dnsmasq, --advisory ALAS2-2026-3318 (ALAS-2026-3318)

The version of dnsmasq installed on the remote host is prior to 2.76-16. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3318 advisory. A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute...

Security update for busybox

This update for busybox fixes the following issue CVE-2026-29004: a crafted DHCPv6 response can lead to a heap buffer overflow in the DHCPv6 client bsc1263989. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...