CVE-2018-6530Known exploitationPublic exploitNetwork attack vector

Unauthenticated command execution via unsanitized service parameter

Published Mar 6, 2018 · Updated Oct 21, 2025

Command injection in soap.cgi in D-Link DIR-860L, DIR-865L, DIR-868L, and DIR-880L allows remote attackers to execute OS commands. The soapcgi_main function in cgibin inserts the unescaped service parameter into a script filename and deletion command executed through system(). Exploitation requires LAN-side access to the SOAP endpoint but no credentials or valid SOAP content, and the published demonstration obtains a root shell.

CVSS severity9.8
Critical
EPSS probability96.68%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in soap.cgi in D-Link DIR-860L, DIR-865L, DIR-868L, and DIR-880L allows remote attackers to execute OS commands. The soapcgi_main function in cgibin inserts the unescaped service parameter into a script filename and deletion command executed through system(). Exploitation requires LAN-side access to the SOAP endpoint but no credentials or valid SOAP content, and the published demonstration obtains a root shell.

The record

CVE
CVE-2018-6530
Published
Mar 6, 2018
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 6, 2018CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8GitHub Advisory DatabaseCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 20269
Sep 23, 20264
Sep 24, 20268
Sep 25, 202617
Sep 26, 20265
Sep 27, 202615
Sep 28, 202613
Latest reporting daySep 28, 2026
Latest daily unique IPs13
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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