{"id":"CVE-2025-58063","revision":"c1b8713616ac46848ef11c467f771891","records":[{"revision":"c1b8713616ac46848ef11c467f771891","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-58063","aliases":[],"title":"CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion","description":"CoreDNS is a DNS server that chains plugins. Starting in version 1.2.0 and prior to version 1.12.4, the CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling DNS cache pinning attacks. This effectively creates a DoS condition for DNS resolution of affected services. The `TTL()` function in `plugin/etcd/etcd.go` incorrectly casts etcd lease IDs (64-bit integers) to uint32 and uses them as TTL values. Large lease IDs become very large TTLs when cast to uint32. This enables cache pinning attacks. Version 1.12.4 contains a fix for the issue.","state":0,"publishedAt":"2025-09-09T19:27:18.124+00:00","modifiedAt":"2025-09-10T14:26:13.85+00:00","affected":[{"ecosystem":"Vendor product","name":"coredns","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"coredns\",\n                    \"product\": \"coredns\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.2.0, < 1.12.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","score":7.1,"severity":"HIGH"}],"references":["https://github.com/coredns/coredns/security/advisories/GHSA-93mf-426m-g6x9","https://github.com/coredns/coredns/commit/e1768a5d272e9da649dfb8588595e5c6e4e640bf"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-58063","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-58063","identifiers":["CVE-2025-58063"]},"retained":false,"historicalAffected":[]}],"coverage":[]}