CVE-2026-0625

Multiple D-Link DSL/DIR/DNS devices contain an authentication bypass and improper access control vulnerability in the dnscfg.cgi endpoint that allows an unauthenticated attacker to access DNS configuration functionality. By directly requesting this endpoint, an attacker can modify the device’s DNS settings without valid credentials, enabling DNS hijacking (“DNSChanger”) attacks that redirect user traffic to attacker-controlled infrastructure. In 2019, D-Link reported that this behavior was leveraged by the "GhostDNS" malware ecosystem targeting consumer and carrier routers. All impacted products were subsequently designated end-of-life/end-of-service, and no longer receive security updates. Exploitation evidence was observed by the Shadowserver Foundation on 2025-11-27 (UTC).
CVSS

No CVSS.

Configurations

No configuration.

History

No history.

Information

Published : 2026-01-05 22:15

Updated : 2026-01-08 18:09


NVD link : CVE-2026-0625

Mitre link : CVE-2026-0625

CVE.ORG link : CVE-2026-0625


JSON object : View

Products Affected

No product.

CWE
CWE-306

Missing Authentication for Critical Function