CVE-2025-9727Public exploitNetwork attack vector

Authenticated command execution via unsanitized service argument

Published Aug 31, 2025 · Updated Oct 23, 2025

OS command injection in D-Link DIR-816L 206b01 allows remote authenticated users to execute commands through the service argument. The soapcgi_main function in /soap.cgi incorporates the attacker-controlled argument into an operating-system command without neutralizing shell metacharacters. Low-privileged access to the web interface is required, and successful exploitation runs attacker-supplied commands on the router.

CVSS severity9.8
Critical
EPSS probability4.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in D-Link DIR-816L 206b01 allows remote authenticated users to execute commands through the service argument. The soapcgi_main function in /soap.cgi incorporates the attacker-controlled argument into an operating-system command without neutralizing shell metacharacters. Low-privileged access to the web interface is required, and successful exploitation runs attacker-supplied commands on the router.

The record

CVE
CVE-2025-9727
Published
Aug 31, 2025
Updated
Oct 23, 2025
Vendor
D-Link
Product
DIR-816L
Classifications
CWE-77, CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=206b01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DIR-816Lversion=206b01

Published CVSS scores

2.1VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo