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{"bugzilla": {"description": "dhcpcd: dhcpcd: Denial of Service via IPv6 Router Advertisement memory leak", "id": "2491824", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491824"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in dhcpcd. An unauthenticated attacker on the same network link can exploit a memory leak vulnerability in the IPv6 Router Advertisement route information handling. By repeatedly sending specially crafted Router Advertisements with a zero lifetime, the attacker can cause the system to exhaust its memory, leading to a denial of service and a daemon crash."], "name": "CVE-2026-56116", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "dhcpcd", "product_name": "Red Hat Enterprise Linux 10"}], "public_date": "2026-06-23T16:11:52Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-56116\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-56116\nhttps://github.com/NetworkConfiguration/dhcpcd/commit/708b4a56bae080a5b18c2e0c4c6fbe103131a2b0\nhttps://www.vulncheck.com/advisories/dhcpcd-memory-leak-dos-via-ipv6-router-advertisement-handling"], "threat_severity": "Moderate"}

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