CVE-2026-56116: dhcpcd Memory Leak DoS via IPv6 Router Advertisement Handling

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-27

Last Updated

2026-07-06

EPSS Score

0.19% (percentile: 8.6%)

Affected Products (3)

Other

• 21558-17084
• 21467-17084
• 21524-17084

Revision History

• 2026-06-27: Information published.
• 2026-06-30: Information published.
• 2026-07-01: Information published.
• 2026-07-06: Information published.