CVE-2018-25115

CRITICAL EXPLOITED

D-Link DIR Series service.cgi - Unauthenticated Command Injection

Title source: manual
STIX 2.1

Exploitation Summary

CVE-2018-25115 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including Cr0n1c.

AI-analyzed exploit summary This exploit targets a remote command execution (RCE) vulnerability in D-Link WAP 615/645/815 devices by leveraging improper authentication handling in the service.cgi endpoint. It includes functionality to detect the device, create a session, and execute arbitrary commands via a shell interface.

Description

Multiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815 firmware version 1.03, contain a vulnerability in the service.cgi endpoint that allows remote attackers to execute arbitrary system commands without authentication. The flaw stems from improper input handling in the EVENT=CHECKFW parameter, which is passed directly to the system shell without sanitization. A crafted HTTP POST request can inject commands that are executed with root privileges, resulting in full device compromise. These router models are no longer supported at the time of assignment and affected version ranges may vary. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-08-21 UTC.

Exploits (1)

exploitdb WORKING POC
by Cr0n1c · pythonwebappshardware
https://www.exploit-db.com/exploits/43496

This exploit targets a remote command execution (RCE) vulnerability in D-Link WAP 615/645/815 devices by leveraging improper authentication handling in the service.cgi endpoint. It includes functionality to detect the device, create a session, and execute arbitrary commands via a shell interface.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: D-Link WAP 615/645/815 < 1.03
Auth required
Prerequisites: Network access to the target device · Valid credentials or ability to exploit weak authentication
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v3 9.8
EPSS 0.0867
EPSS Percentile 94.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

VulnCheck KEV 2023-09-06
CWE
CWE-78
Status published
Products (14)
D-Link/DIR-110
D-Link/DIR-412
D-Link/DIR-600
D-Link/DIR-615
D-Link/DIR-645
D-Link/DIR-815 < Version A 1.3
D-Link/DIR-815 1.03
dlink/dir-110_firmware
dlink/dir-412_firmware
dlink/dir-600_firmware
... and 4 more
Published Aug 27, 2025
Tracked Since Feb 18, 2026