PT-2026-68758

Name of the Vulnerable Software and Affected Versions Contiki-NG affected versions not specified Description The DNS/mDNS resolver contains an issue where the skip name function in os/services/resolv/resolv.c processes DNS wire-format name labels without performing packet-boundary checks. The...

CVE-2026-5856: Out-of-bounds Read

Contiki-NG's DNS/mDNS resolver skipname in os/services/resolv/resolv.c walks DNS wire-format name labels with no packet-boundary check, and the caller in newdata invokes it in a loop iterating nquestions times from the attacker-controlled DNS header before validating the transaction ID. An attack...