Background exploitation KEV catalog Ransomware No authentication
CVE-2018-6530

D-Link Multiple Routers OS Command Injection Vulnerability

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…

CheckOps priority index
9.8/10 Patch within 24 h
Severity9.8
Probability9.7
Exploitation5/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 96.7% higher than 99.9% of CVEs
CVSS 3.1 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:
Exploited for 1,517 days 08 Sept 2022
CISA due date 29 Sept 2022 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 5 / 5

  • KEV catalog (CISA)08 Sept 2022
  • Exploited in EUVD (ENISA)08 Sept 2022
  • Used by ransomwareyes
  • EPSS above 10 %96.7%
  • No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: 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.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

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.

Affected products

Multiple Routers
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 96.7%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2025-29635D-Link DIR-823X Command Injection Vulnerability
    7.3 · Background exploitation
  • CVE-2022-37055D-Link Routers Buffer Overflow Vulnerability
    8.0 · Background exploitation
  • CVE-2022-40799D-Link DNR-322L Download of Code Without Integrity Check Vulnerability
    6.3 · Background exploitation
  • CVE-2020-25079D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
    6.9 · Background exploitation
  • CVE-2020-25078D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability
    8.3 · Background exploitation
  • CVE-2024-0769D-Link DIR-859 Router Path Traversal Vulnerability
    7.0 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities