THREATPORT/VULNERABILITY/CVE-2018-17787
CRITICAL SEVERITY

CVE-2018-17787

Dir 823g Firmware vulnerability

CVSS
9.8
EPSS
3.7%
EPSS pct
88th
Exploited
No known
On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the "system" library function.
Affected vendor
D Link
Affected product
Dir 823g Firmware
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-78 — OS Command Injection
Published
2018-10-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2018-17787

  • Confirm whether D Link Dir 823g Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-17787.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-17787

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-17787 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2018-17787?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2018-17787.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL
CVE-2017-15293
Point Of Sale Xpress Server vulnerability
CRITICAL
CVE-2015-2780
Berta Cms vulnerability
CRITICAL
CVE-2015-4650
Clearpass Policy Manager vulnerability