CVE-2026-3104highCWE-772

Memory leak in code preparing DNSSEC proofs of non-existence

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 7.5epss 0.7%

probabilidad de explotación

0.7%top 50% de las CVE

explotación observada

noninguna fuente lo reporta

A specially crafted domain can be used to cause a memory leak in a BIND resolver simply by querying this domain. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.

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

Productos afectados

ISC · BIND 9

Referencias

https://access.redhat.com/errata/RHSA-2026:6935 https://access.redhat.com/security/cve/CVE-2026-3104 https://bugzilla.redhat.com/show_bug.cgi?id=2451310 https://downloads.isc.org/isc/bind9/9.20.21 https://downloads.isc.org/isc/bind9/9.21.20 https://kb.isc.org/docs/cve-2026-3104 https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3104.json