CVE-2018-6530

Exp

OS command injection vulnerability in soap.cgi (soapcgi_main in cgibin) in D-Link DIR-880L DIR-880L_REVA_FIRMWARE_PATCH_1.08B04 and previous versions, DIR-868L DIR868LA1_FW112b04 and previous versions, DIR-65L DIR-865L_REVA_FIRMWARE_PATCH_1.08.B01 and previous versions, and DIR-860L DIR860LA1_FW110b04 and previous versions allows remote attackers to execute arbitrary OS commands via the service parameter.

Published: 2018-03-06 Last update: 2025-11-07 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-6530 is rated Critical Active Threat (99.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 94.21%, 100th percentile). CISA KEV confirms active exploitation (added 2022-09-08) affecting D-Link / Multiple Routers. a weakness (CWE-78) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2018-6530

Name: D-Link Multiple Routers OS Command Injection Vulnerability · CISA KEV detail

Exploit added: 2022-09-08

Action due: 2022-09-29

Required action: The vendor D-Link published an advisory stating the fix under CVE-2018-20114 properly patches KEV entry CVE-2018-6530. If the device is still supported, apply updates per vendor instructions. If the affected device has since entered its end-of-life, it should be disconnected if still in use.

Public exploit references (Exploit-DB) for CVE-2018-6530

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-6530

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-27 94.29% 94.21% -0.09%
2 2026-01-16 94.04% 94.29% +0.26%
3 2025-12-10 — 94.04% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-6530

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2018-6530

Affected software / configurations for CVE-2018-6530

Vendor Product Version Raw CPE
dlink dir-860l_firmware <= 1.10b04 cpe:2.3:o:dlink:dir-860l_firmware:*:*:*:*:*:*:*:*
dlink dir-865l_firmware <= 1.08b01 cpe:2.3:o:dlink:dir-865l_firmware:*:*:*:*:*:*:*:*
dlink dir-868l_firmware <= 1.12b04 cpe:2.3:o:dlink:dir-868l_firmware:*:*:*:*:*:*:*:*
dlink dir-880l_firmware <= 1.08b04 cpe:2.3:o:dlink:dir-880l_firmware:*:*:*:*:*:*:*:*

References for CVE-2018-6530

cvelogic Threat Intelligence