CyberICT

CVE-2026-1519

Microsoft · Published March 31, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

Excessive NSEC3 iterations cause high CPU load during insecure delegation validation. Excessive NSEC3 iterations cause high CPU load during insecure delegation validation

Affected Products

  • cbl2 bind 9.16.50-3 on CBL Mariner 2.0
  • azl3 bind 9.20.18-1 on Azure Linux 3.0
  • cbl2 bind 9.16.50-3
  • cbl2 dhcp 4.4.3.P1-3 on CBL Mariner 2.0

CVSS Vector

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