CVE intelligence and bounded remediation

CVE-2016-8374 — Schneider-Electric Magelis Gtu Universal Panel Firmware security vulnerability

High CVSS 7.8

An issue was discovered in Schneider Electric Magelis HMI Magelis GTO Advanced Optimum Panels, all versions, Magelis GTU Universal Panel, all versions, Magelis STO5xx and STU Small panels, all versions, Magelis XBT GH Advanced Hand-held Panels, all versions, Magelis XBT GK Advanced Touchscreen Panels with Keyboard, all versions, Magelis XBT GT Advanced Touchscreen Panels, all versions, and Magelis XBT GTW Advanced Open Touchscreen Panels (Windows XPe). An attacker may be able to disrupt a targeted web server, resulting in a denial of service because of UNCONTROLLED RESOURCE CONSUMPTION.

Severity
High
CVSS
7.8 (2.0)
Published
2017-02-13
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-400

Affected products

  • schneider-electric / magelis_gtu_universal_panel_firmware
  • schneider-electric / magelis_gto_advanced_optimum_panel_firmware
  • schneider-electric / magelis_sto5_small_panel_firmware
  • schneider-electric / magelis_stu_small_panel_firmware
  • schneider-electric / magelis_xbt_gh_advanced_hand-held_panel_firmware
  • schneider-electric / magelis_xbt_gk_advanced_touchscreen_panel_with_keyboard_firmware

Showing 6 representative product identities from 8 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

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