D Link DSL 2740R vulnerabilities
2 vulnerabilities
Known vulnerabilities in D Link DSL 2740R, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.
CVE-2026-0625d-linkdir-600+16
EPSS score0.97%
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).CVE-2026-7027d-linkdsl-2740r+1EPSS score0.80%
A vulnerability was identified in D-Link DSL-2740R EU_01.15. Impacted is an unknown function of the component Wireless Setup Section. Such manipulation of the argument Wireless Network Name leads to cross site scripting. The attack can be executed remotely. The exploit is publicly available and might be used.