High
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2023-28452
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 12:24 UTC · Revision 1
Source evidence
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.
osv:CVE-2023-28452
Complete source record
{
"id": "ffd4905bae154241ef84399541ce0ccbc1c53192dfd91d7328e33bc072d9518d",
"url": "https://osv.dev/vulnerability/CVE-2023-28452",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2023-28452",
"summary": "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.",
"evidence": "osv:CVE-2023-28452",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2023-28452",
"aliases": [
"CVE-2023-28452",
"GHSA-hfmw-7g3m-gj6q",
"GO-2024-3130"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/coredns/coredns",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "055b2c31a9cf28321734e5f71613ea080d216cd3"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:coredns.io:coredns:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.10.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v1.10.1",
"v1.10.0",
"v1.9.4",
"v1.9.3",
"v1.9.2",
"v1.9.1",
"v1.9.0",
"v1.8.7",
"v1.8.6",
"v1.8.5",
"v1.8.4",
"v1.8.3",
"v1.8.2",
"v1.8.1",
"v1.8.0",
"v1.7.1",
"v1.7.0",
"v1.6.9",
"v1.6.8",
"v1.6.7",
"v1.6.6",
"v1.6.5",
"v1.6.4",
"v1.6.3",
"v1.6.2",
"v1.6.1",
"v1.6.0",
"v1.5.2",
"v1.5.1",
"v1.5.0",
"v1.4.0",
"v1.3.1",
"v1.3.0",
"v1.2.6",
"v1.2.5",
"v1.2.4",
"v1.2.3",
"v1.2.2",
"v1.2.1",
"v1.2.0",
"v1.1.4",
"v1.1.3",
"v1.1.2",
"v1.1.1",
"v1.1.0",
"v1.0.6",
"v1.0.5",
"v1.0.3",
"v1.0.2",
"v1.0.1",
"v1.0.0",
"v0.9.10",
"v0.9.9",
"v011",
"v010",
"v009",
"v008",
"v007",
"v006",
"v005",
"v004",
"v003",
"v002",
"v001"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-28452.json"
}
}
],
"modified": "2026-10-28T02:30:28.391432053Z",
"provider": "osv",
"references": [
"https://coredns.io/",
"https://gist.github.com/idealeer/e41c7fb3b661d4262d0b6f21e12168ba",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28452.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-28452"
],
"provider_metadata": {
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28452.json"
}
},
"related_cves": [
{
"value": "CVE-2023-28452",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 495346,
"published_at": "2024-09-18T00:00:00+00:00"
}