Which versions of D-Link DIR-825M are affected by CVE-2026-7288?

D-Link DIR-825M routers running firmware version 1.1.12 are vulnerable to authenticated remote code execution through a buffer overflow in the VPN configuration interface, allowing attackers with…

How to fix or mitigate CVE-2026-7288?

Within 24 hours: Inventory all D-Link DIR-825M 1.1.12 devices in production and assess exposure to untrusted networks. Within 7 days: Implement network segmentation to restrict administrative access to these routers from trusted management networks only, and enforce strong authentication credentials. Within 30 days: Contact D-Link support for firmware update availability; if no patch emerges, evaluate replacement with alternative routing solutions or implement compensating controls (see below).

D-Link DIR-825M CVE-2026-7288

Q: What is the CVSS score of CVE-2026-7288?

CVE-2026-7288 has a CVSS 4.0 base score of 7.4 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

EUVD-2026-26067 HIGH

Buffer Overflow (CWE-119)

2026-04-28 cna@vuldb.com

Buffer Overflow D-Link

7.4

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

7.4 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Re-analysis Queued

Apr 28, 2026 - 20:38 vuln.today

cvss_changed

Analysis Generated

Apr 28, 2026 - 15:30 vuln.today

EUVD ID Assigned

Apr 28, 2026 - 15:22 euvd

EUVD-2026-26067

Analysis Generated

Apr 28, 2026 - 15:22 vuln.today

CVE Published

Apr 28, 2026 - 15:16 nvd

HIGH 7.4

DescriptionCVE.org

A vulnerability has been found in D-Link DIR-825M 1.1.12. This vulnerability affects the function sub_4151FC of the file /boafrm/formVpnConfigSetup. The manipulation of the argument submit-url leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

AnalysisAI

Buffer overflow in D-Link DIR-825M 1.1.12 router allows authenticated remote attackers to achieve high-severity code execution via crafted submit-url parameter in VPN configuration interface. Public exploit code exists (CVSS 4.0 E:P) with technical details disclosed on GitHub, enabling remote compromise of router administrative functions by low-privileged authenticated users. CVSS 7.4 HIGH severity with network attack vector and low complexity indicates significant risk for internet-facing devices with default or weak credentials.

Technical ContextAI

This vulnerability stems from insufficient input validation in the formVpnConfigSetup handler (function sub_4151FC at /boafrm/formVpnConfigSetup endpoint) within D-Link's embedded web server firmware. The submit-url parameter lacks bounds checking before being copied into a fixed-size stack buffer, triggering CWE-119 (Improper Restriction on Operations within the Bounds of a Memory Buffer). This classic memory corruption flaw in C/C++ code running on MIPS or ARM-based router firmware allows attackers to overflow adjacent memory structures. The BOA web server framework commonly used in D-Link devices historically has exhibited similar input validation weaknesses in form handlers. The CVSS 4.0 vector shows network-accessible exploitation (AV:N) with low complexity (AC:L) requiring low privileges (PR:L), indicating the authenticated web interface is the attack surface.

RemediationAI

Primary remediation path is unclear as no vendor security advisory or patched firmware version is referenced in available intelligence. Consult D-Link's security portal at https://www.dlink.com/ and contact D-Link support to determine if firmware updates addressing CVE-2026-7288 exist for DIR-825M 1.1.12. IMMEDIATE compensating controls recommended: (1) Disable remote management access from WAN interfaces - restricts attack surface to LAN-side threats only but eliminates internet-based exploitation; (2) Implement strong authentication with non-default credentials and consider disabling web-based management in favor of local console access if operationally feasible; (3) Deploy the router behind a separate firewall that restricts administrative access to specific trusted IP addresses - adds defense-in-depth but increases management complexity; (4) Disable VPN configuration functionality if not actively used - eliminates the vulnerable code path entirely but removes legitimate VPN features. If no patch becomes available and device is end-of-life, replacement with currently supported hardware is the only permanent solution. Monitor VulDB entry https://vuldb.com/vuln/359946 for updates on exploit activity and remediation guidance.