Is CVE-2026-1519 actively exploited?

No active exploitation of CVE-2026-1519 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-1519 be exploited remotely?

Yes. CVE-2026-1519 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-1519?

CVE-2026-1519 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-1519

HIGH

CVE-2026-1519

CWE-606Published: March 25, 2026· Updated: Mar 25, 2026

7.5

CVSS v3.1

Official Description

If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/docs/why-does-my-authoritative-server-make-recursive-queries).

This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.46, 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.46-S1, and 9.20.9-S1 through 9.20.20-S1.

NVD Source

Technical Analysis

CVE-2026-1519 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.