What’s Vulnerable › Vulnerabilities

CVE-2018-25115: D-Link DIR-110/412/600/615/645/815 RCE via service.cgi

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 10.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-08-27 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• Dlink Dir-110 Firmware: all versions
• Dlink Dir-412 Firmware: all versions
• D-Link DIR-600: all versions
• Dlink Dir-610 Firmware: all versions
• D-Link DIR-615: all versions
• D-Link DIR-645: all versions
• D-Link DIR-815: 1.03

References

• https://github.com/Cr0n1c/dlink_shell_poc/blob/master/dlink_auth_rce
• https://legacy.us.dlink.com/
• https://support.dlink.com/EndOfLifePolicy.aspx
• https://www.exploit-db.com/exploits/43496
• https://www.vulncheck.com/advisories/dlink-dir-rce-service-cgi

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