PT-2026-42446 · Powerdns+3 · Authoritative+1

Ilhamaf · CVE-2026-42000 · Published 2026-05-21 · Updated 2026-07-23

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description Insufficient validation of names occurs during AXFR (Asynchronous Full Transfer), a mechanism used by DNS servers to replicate zone data from a primary server to a secondary server.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2026-42000

Affected Products

Authoritative

Pdns

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42000.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-42000 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-42000 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42000 · Security Note
• https://osv.dev/vulnerability/CVE-2026-42000 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-42000 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-42000 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-42000 · Vendor Advisory
• https://github.com/PowerDNS/pdns · Note
• https://github.com/PowerDNS/pdns/commit/7473d0e899f876507b001ba2966a82aafdce025e · Note
• https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-06.html#insufficient-validation-of-names-during-axfr · Note
• https://t.me/cveNotify/217044 · Telegram Post
• https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html · Note
• https://t.me/CVEtracker/54487 · Telegram Post
• https://repo.powerdns.com · Note