CVE-2026-6507 — Dnsmasq: dnsmasq: denial of service due to out-of-bounds write in dhcp bootreply processing
A flaw was found in dnsmasq. A remote attacker could exploit an out-of-bounds write vulnerability by sending a specially crafted BOOTREPLY (Bootstrap Protocol Reply) packet to a…
Published: 2026-04-17 · CVSS: 7.5 · CVSS 3.1
A flaw was found in dnsmasq. A remote attacker could exploit an out-of-bounds write vulnerability by sending a specially crafted BOOTREPLY (Bootstrap Protocol Reply) packet to a dnsmasq server configured with the `--dhcp-split-relay` option. This can lead to memory corruption, causing the dnsmasq daemon to crash and resulting in a denial of service (DoS).
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7