CVE Watch15 jul 2026

CVE-2026-1519

If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Author

CVSS

7.5

Alto

EPSS

1.5%

p72

KEV

—

Exploit Today

0-100

Publicado: 25 mar 2026 · Última mod.: 15 jul 2026 · CWE-606 · CWE-770

EPSS · 30d

1.5%EPSS · 30 días1.5%

2026-06-302026-07-16

Descripción técnica

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.

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