openwrt odhcpd

• CVE-2026-55606 Medium 6.5 odhcpd: Stack buffer overread via DUID length endianness mismatch in memcmp() 0.5%
• CVE-2026-53918 High 8.8 odhcpd DHCPv6 IA dangling first pointer use-after-free 0.6%
• CVE-2026-53920 High 8.7 odhcpd DHCPv6 Short IA_NA/IA_PD Body Stack Disclosure 0.4%
• CVE-2026-53921 Critical 9.8 odhcpd: Stack buffer overflow in DHCPv6 IA reply serialization (2 independent sites) 1.1%
• CVE-2026-53922 Medium 6.5 odhcpd: pre-auth remote DoS via size_t underflow in dhcpv6_ia_handle_IAs (stack BOF, canary-terminated) 0.6%