CVE Explorer
CVE-2026-66374
Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Knot Resolver","vendor":"nic","versions":[{"lessThan":"6.4.1","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f88a7a4ea12c2973a95309757e8acf214fb76d12b3daed80255749ed7459d675 · sha256:ea0fa0cab94d0257… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f88a7a4ea12c2973a95309757e8acf214fb76d12b3daed80255749ed7459d675 · sha256:ea0fa0cab94d0257… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-1284","description":"CWE-1284 Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f88a7a4ea12c2973a95309757e8acf214fb76d12b3daed80255749ed7459d675 · sha256:ea0fa0cab94d0257… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"tags":["exploit"],"url":"https://github.com/venglin/knot-doq"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f88a7a4ea12c2973a95309757e8acf214fb76d12b3daed80255749ed7459d675 · sha256:ea0fa0cab94d0257… · /containers/adp/0/references/0
{"url":"https://github.com/venglin/knot-doq"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f88a7a4ea12c2973a95309757e8acf214fb76d12b3daed80255749ed7459d675 · sha256:ea0fa0cab94d0257… · /containers/cna/references/1
{"url":"https://openwall.com/lists/oss-security/2026/07/23/6"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f88a7a4ea12c2973a95309757e8acf214fb76d12b3daed80255749ed7459d675 · sha256:ea0fa0cab94d0257… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.