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...

PT-2026-51563

Name of the Vulnerable Software and Affected Versions dhcpcd versions prior to 10.3.2 Description A one-byte stack out-of-bounds write exists in the dhcp6 makemessage function within src/dhcp6.c. Unauthenticated attackers on the same link can trigger this by serializing an oversized RFC6603 OPTIO...