{"id":"CVE-2023-28452","aliases":["GHSA-hfmw-7g3m-gj6q","GO-2024-3130"],"url":"https://o3.security/vulnerability/CVE-2023-28452","summary":"CoreDNS vulnerable to TuDoor Attacks","details":"An issue was discovered in CoreDNS through 1.10.1. There is a vulnerability in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing denial of service for normal resolution. In an exploit, the attacker could just forge a response targeting the source port of a vulnerable resolver without the need to guess the correct TXID.","published":"2024-09-18T00:00:00Z","modified":"2026-08-12T03:51:45.533292252Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00613,"percentile":0.46655,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/coredns/coredns","fixedVersion":"1.11.0"}],"fix":null,"references":[{"type":"WEB","url":"https://coredns.io/"},{"type":"WEB","url":"https://gist.github.com/idealeer/e41c7fb3b661d4262d0b6f21e12168ba"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28452.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28452"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:45.533292252Z"}}