CVE-2026-27854
Use after free when parsing EDNS options in Lua
Vexday Risk Score
13Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 4.8EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
31 mar 2026Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a use-after-free and potentially a crash resulting in denial of service.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Productos afectados
PowerDNS · DNSdist¿Quieres saber si tu infraestructura está expuesta a esto?
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