PT-2026-33448 · Red Hat · Red Hat Enterprise Linux 10+5

Published 2026-04-17 · Updated 2026-04-17 · CVE-2026-6507

Mitre

CVSS v3.1

7.5

High

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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).

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-6507

Affected Products

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

Red Hat Openshift Container Platform 4

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-6507 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-6507 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2459181 · Note