CVE•Published 2026-04-26•Modified 2026-04-29•0 articles on news•6 live references•NVD data
CVE-2026-42255Technitium · Dnsserver
Vulnerability data via NVD (ingested)
CVSS v3.1
7.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
EPSS percentile
10
Exploit Prediction Scoring System · top 90% of all CVEs
Weaknesses (CWE)
Description
Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.
Timeline
Published 2026-04-26
Modified 2026-04-29
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-42255Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Technitium Dnsserver"All exposed Technitium Dnsserver instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Dnsserver"HTTP body or banner mentions "Dnsserver" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-42255Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-42255Censys host search filtered to this CVE id.
grep.app
CVE-2026-42255Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-42255GitHub code search for direct mentions.
Google dork
"CVE-2026-42255" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-42255 on GitHub.
We haven't classified any articles referencing CVE-2026-42255 yet. The external references above still apply.