CVE-2026-40211: fallo de gravedad media en PowerDNS DNSdist
Denial of service via crafted DoH3 queries
Publicada el
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.3epss 0.7%
probabilidad de explotación
0.7%top 48% de las CVE
explotación observada
noninguna fuente lo reporta
An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memory condition, resulting in a denial of service.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Productos afectados
PowerDNS · DNSdistCVEs relacionadas — PowerDNS DNSdist
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