CVE-2021-42627
CriticalCVSS 9.8Exploitation Probability (EPSS)
Very high risk99th percentile - higher than 99% of all known CVEs
Summary
A vulnerability in the firmware of D-Link DIR-615 router version 20.06 allows unauthenticated access to the WAN configuration page (wan.htm). This enables reading WAN settings and modifying data fields on the page.
Risk Assessment
An unauthenticated attacker can obtain sensitive WAN configuration information and alter settings, potentially leading to device compromise and network security breach.
Recommendation
Immediately update the D-Link DIR-615 firmware to the latest available version that fixes this vulnerability. If no update is available, restrict administrative panel access to trusted networks only.
Other vulnerabilities in D-Link DIR-615
See all- CVE-2026-1506High
A vulnerability was found in D-Link DIR-615 version 4.10 in the file /adv_mac_filter.php within the MAC Filter Configuration component. Manipulation of the mac argument allows remote OS command injection. The exploit has been publicly disclosed and may be utilized.
- CVE-2026-1505High
A vulnerability was found in D-Link DIR-615 version 4.10 in the file /set_temp_nodes.php of the URL Filter component. Manipulation leads to OS command injection. The attack can be executed remotely, and the exploit has been made public.
- CVE-2026-1448High
D-Link DIR-615 up to version 4.10 has an OS command injection vulnerability in the file /wiz_policy_3_machine.php in the Web Management Interface. Manipulation of the ipaddr argument allows remote command execution. The exploit is public, and the product is no longer supported.
- CVE-2017-11436Critical
D-Link DIR-615 before v20.12PTb04 has a second admin account with a BACKDOOR value of 0x1, which might allow remote attackers to gain access via a TELNET connection.
- CVE-2017-7406Critical
The D-Link DIR-615 device before v20.12PTb04 does not use SSL for any authenticated pages, exposing users to data theft. An attacker can monitor network traffic to capture user credentials.
- CVE-2017-7405Critical
On D-Link DIR-615 devices before v20.12PTb04, once authenticated, user identification is based on the IP address of their machine. An attacker, by spoofing the victim's IP address, may take over the administrative session without needing authentication credentials.
Original NVD description (English source)
The WAN configuration page "wan.htm" on D-Link DIR-615 devices with firmware 20.06 can be accessed directly without authentication which can lead to disclose the information about WAN settings and also leverage attacker to modify the data fields of page.