THREATPORT/VULNERABILITY/CVE-2021-42784
CRITICAL SEVERITY

CVE-2021-42784

Dwr 932c E1 Firmware vulnerability

CVSS
9.8
EPSS
7.1%
EPSS pct
94th
Exploited
No known
OS Command Injection vulnerability in debug_fcgi of D-Link DWR-932C E1 firmware allows a remote attacker to perform command injection via a crafted HTTP request.
Affected vendor
Dlink
Affected product
Dwr 932c E1 Firmware
CVSS vector
CVSS:3.1/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
2021-11-23

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 7.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2021-42784

  • Confirm whether Dlink Dwr 932c E1 Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-42784.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-42784

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-42784 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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