CVE-2018-25115

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published8/27/2025

Last Modified9/24/2025

Sourcenvd

Honeypot Sightings0

Affected Products

dlink:dir-110dlink:dir-110_firmwaredlink:dir-412dlink:dir-412_firmwaredlink:dir-600dlink:dir-600_firmwaredlink:dir-610dlink:dir-610_firmwaredlink:dir-615dlink:dir-615_firmwaredlink:dir-645dlink:dir-645_firmwaredlink:dir-815dlink:dir-815_firmware

Weaknesses (CWE)

CWE-78

References

https://github.com/Cr0n1c/dlink_shell_poc/blob/master/dlink_auth_rce(disclosure@vulncheck.com)

https://legacy.us.dlink.com/(disclosure@vulncheck.com)

https://support.dlink.com/EndOfLifePolicy.aspx(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/43496(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/dlink-dir-rce-service-cgi(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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