THREATPORT/VULNERABILITY/CVE-2017-7924
HIGH SEVERITY

CVE-2017-7924

1763 L16bwa Firmware vulnerability

CVSS
7.5
EPSS
22.2%
EPSS pct
97th
Exploited
No known
An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.
Affected vendor
Rockwellautomation
Affected product
1763 L16bwa Firmware
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2017-09-20

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 availability.

Its EPSS score of 22.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2017-7924

  • Confirm whether Rockwellautomation 1763 L16bwa Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-7924.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-7924

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-7924 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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