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CVE-2026-93006

CVE-2026-93006 · Dnsmasq: dnsmasq: tftp prefetch cache keyed on stale heap pointer serves wrong file content

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A flaw was found in dnsmasq. The TFTP server can serve the wrong file contents because a recently used transfer cache is not invalidated when a transfer finishes. An attacker on the local network who can request a TFTP file may cause a later client to receive previously cached data instead of the requested file. In PXE network-boot environments this can substitute attacker-chosen boot content for a victim machine.

CVSS 6.8 · Medium · EPSS 0.3%

Published
Updated

Stack: system

Affected products and versions

Original sources

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