Unbound DNSSEC validator before 1.26.1 has a critical heap overflow that can enable remote code execution via a malicious DNS zone. Version 1.26.1 fixes CVE-2026-81642 and other flaws. #Unbound #CVE-2026-81642 #NLnetLabs

CVE-2026-81642 - unbound
Unbound versions up to 1.26.0 can mishandle specially crafted DNSSEC keys, causing the program to stop working or potentially run attacker code. An attacker who controls a…

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#unbound #nlnetlabs #CVE #infosec