What is CVE-2018-19300?

CVE-2018-19300 is a critical-severity vulnerability in D-Link Dap-1530 Firmware, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-04-11.

How severe is CVE-2018-19300?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Improper input validation in D-Link Dap-1530 Firmware

CVE-2018-19300

On D-Link DAP-1530 (A1) before firmware version 1.06b01, DAP-1610 (A1) before firmware version 1.06b01, DWR-111 (A1) before firmware version 1.02v02, DWR-116 (A1) before firmware version 1.06b03, DWR-512 (B1) before firmware version 2.02b01, DWR-711 (A1) through firmware version 1.11, DWR-712 (B1) before firmware version 2.04b01, DWR-921 (A1) before firmware version 1.02b01, and DWR-921 (B1) before firmware version 2.03b01, there exists an EXCU_SHELL file in the web directory. By sending a GET request with specially crafted headers to the /EXCU_SHELL URI, an attacker could execute arbitrary shell commands in the root context on the affected device. Other devices might be affected as well.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-04-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.743 (99.5th percentile), scored 2026-10-28.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.743 · newest: 0.743 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.greenbone.net/schwerwiegende-sicherheitsluecke-in-d-link-routern-entdeckt/ (Third Party Advisory)
community.greenbone.net/t/cve-2018-19300-remote-command-execution-vulnerability… (Exploit, Third Party Advisory)
eu.dlink.com/de/de/support/support-news/2019/march/19/remote-command-execution-… (Vendor Advisory)
www.greenbone.net/en/serious-vulnerability-discovered-in-d-link-routers/ (Third Party Advisory)

Frequently asked questions

What is CVE-2018-19300?: CVE-2018-19300 is a critical-severity vulnerability in D-Link Dap-1530 Firmware, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-04-11.
How severe is CVE-2018-19300?: Critical severity. CVSS v3 base score is 9.8 out of 10.