VULNERABILITY INTELLIGENCE
CVE-2026-6507
CVSS score7.5 HIGH
EPSS probability0.48%
CISA KEVNot currently listed
Published2026-04-17
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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).
Weakness classification
- secalert@redhat.com: CWE-787