cve-2026-3593

  1. CVE-2026-3593 DoH in BIND 9: Patch Urgently or Disable DNS-over-HTTPS

    CVE-2026-3593 is a high-severity heap use-after-free vulnerability disclosed on May 20, 2026, in the DNS-over-HTTPS implementation of BIND 9, affecting BIND 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and the supported preview 9.20.9-S1 through 9.20.22-S1. ISC says crafted HTTP/2 traffic...
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    • bind 9 cve-2026-3593 dns over https vulnerability management
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