CVE•Published 2026-05-21•Modified 2026-05-26•0 articles on news•5 live references•NVD data

CVE-2026-42002Powerdns · Authoritative

Vulnerability data via NVD (ingested)

CVSS v3.1

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS percentile

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Weaknesses (CWE)

CWE-364Signal Handler Race Condition

Description

Concurrency and locking defects in GSS-TSIG

Timeline

Published 2026-05-21

Modified 2026-05-26

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

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-2026-42002

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Powerdns Authoritative"

All exposed Powerdns Authoritative instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Authoritative"

HTTP body or banner mentions "Authoritative" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-42002

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2026-42002

Censys host search filtered to this CVE id.

grep.app

CVE-2026-42002

Public source-code mentions — fast PoC discovery.

GitHub code

CVE-2026-42002

GitHub code search for direct mentions.

Google dork

"CVE-2026-42002" exploit -site:nvd.nist.gov

Write-ups and news, NVD excluded.

Known PoCs on GitHub

No public proof-of-concept repositories found for CVE-2026-42002 on GitHub.

We haven't classified any articles referencing CVE-2026-42002 yet. The external references above still apply.