CVE-2025-71058

critical · 9.1

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.

9.1

CVSS

0.5%

EPSS (exploit prob.)

39th

EPSS percentile

2026-04-07

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weaknesses

CWE-94

References

https://github.com/FPokerFace/Security-Advisory/blob/main/CVE-2025-71058/poc.c
https://github.com/FPokerFace/Security-Advisory/tree/main/CVE-2025-71058
https://sourceforge.net/projects/dhcp-dns-server/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-71058