CVE-2026-42255 (GCVE-0-2026-42255)
Vulnerability from cvelistv5 – Published: 2026-04-26 02:48 – Updated: 2026-04-26 03:10
VLAI?
Summary
Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.
Severity ?
7.2 (High)
CWE
- CWE-684 - Incorrect Provision of Specified Functionality
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Technitium | DnsServer |
Affected:
0 , < 15.0.0
(custom)
|
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"status": "affected",
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}
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"cpeApplicability": [
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],
"descriptions": [
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}
],
"metrics": [
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"attackVector": "NETWORK",
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"baseScore": 7.2,
"baseSeverity": "HIGH",
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"integrityImpact": "LOW",
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"scope": "CHANGED",
"userInteraction": "NONE",
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"scenarios": [
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"problemTypes": [
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}
],
"providerMetadata": {
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"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
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}
],
"x_generator": {
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"cveId": "CVE-2026-42255",
"datePublished": "2026-04-26T02:48:44.810Z",
"dateReserved": "2026-04-26T02:48:44.278Z",
"dateUpdated": "2026-04-26T03:10:30.349Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
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"date": "2026-04-26",
"epss": "0.00033",
"percentile": "0.09741"
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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