CWE-400: An Uncontrolled Resource Consumption vulnerability exists that could cause the device to become unresponsive resulting in communica

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• schneider-electric powerlogic pm5320 firmwarebefore 2.4.0
• schneider-electric powerlogic pm5340 firmwarebefore 2.4.0
• schneider-electric powerlogic pm5341 firmwarebefore 2.7.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (schneider). Independent of NVD's CPE analysis and usually ahead of it.

• Schneider Electric PowerLogic PM5320

  • Version 2.3.8 and prioraffected

• Schneider Electric PowerLogic PM5340

  • Version 2.3.8 and prioraffected

• Schneider Electric PowerLogic PM5341

  • Version 2.6.6 and prioraffected

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1function expand(node) {2  return node.children.map(expand);3}

1const MAX_DEPTH = 32;2function expand(node, depth = 0) {3  if (depth > MAX_DEPTH) throw new Error("too deep");4  return node.children.map((c) => expand(c, depth + 1));5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.