CVE-2025-71058

CRITICAL

Dual DHCP DNS Server 8.01 - DNS Cache Poisoning

Title source: llm

Description

Dual DHCP DNS Server 8.01 improperly accepts and caches UDP DNS responses without validating that the response originates from a legitimate configured upstream DNS server. The implementation matches responses primarily by TXID and inserts results into the cache, enabling a remote attacker to inject forged responses and poison the DNS cache, potentially redirecting victims to attacker-controlled destinations.

Scores

CVSS v3 9.1
EPSS 0.0014
EPSS Percentile 34.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-94
Status published
Published Apr 07, 2026
Tracked Since Apr 08, 2026