CVE-2026-19668: Resource Exhaustion via Excessive DNSSEC Cryptographic Material Matching

Overview

Severity

Medium (CVSS 5.3)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-21

Last Updated

2026-09-21

EPSS Score

0.40% (percentile: 34.4%)

Affected Products (1)

Other

• 21677-17084

Security Updates (1)

• Security Update

Revision History

• 2026-09-21: Information published.
• 2026-09-21: Information published.