CVE-2026-40209: falha de média gravidade em PowerDNS DNSdist
Denial of service via IXFR queries
Publicada em
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 5.3epss 0.7%
probabilidade de exploração
0.7%top 48% das CVEs
exploração observada
nãonenhuma fonte reporta
An attacker might be able to cause outgoing TCP connections to backend to be stuck until a timeout occurs instead of being released immediately, by sending IXFR queries. This could be used to cause a denial of service if there is a limit to the number of concurrent connections to this backend, or if the process runs out of file descriptors.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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