Knot Resolver 6.3.0 DoQ overflow allows unauthenticated RCE
A single DNS-over-QUIC connection could overflow a heap buffer; the flaw is fixed in 6.4.1.
By tarpitA single DNS-over-QUIC connection could overflow a heap buffer; the flaw is fixed in 6.4.1.
By tarpitCVE-2026-5450 fixed a user-controlled overflow when %mc or %mC resized its allocated buffer.
By segfaultUnder-allocation when growing the buffer for the %mc and %mC conversions left a user-controlled write past the end of the heap block.
By rvalue