Certain HP OfficeJet Pro printers are potentially vulnerable to a Denial of Service when using an improper eSCL URL GET request.

Affected versions

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

• hp 1kr42a firmwarebefore 002.2349a
• hp 1kr45a firmwarebefore 002.2349a
• hp 1kr46a firmwarebefore 002.2349a
• hp 1kr48a firmwarebefore 002.2349a
• hp 1kr49a firmwarebefore 002.2349a
• hp 1kr54a firmwarebefore 002.2349a
• hp 1kr55a firmwarebefore 002.2349a
• hp 1kr55b firmwarebefore 002.2349a
• hp 1kr55d firmwarebefore 002.2349a
• hp 1mr66a firmwarebefore 002.2349a
• hp 1mr67a firmwarebefore 002.2349a
• hp 1mr68a firmwarebefore 002.2349a
• hp 1mr69a firmwarebefore 002.2349a
• hp 1mr69c firmwarebefore 002.2349a
• hp 1mr70a firmwarebefore 002.2349a
• hp 1mr71a firmwarebefore 002.2349a
• hp 1mr72a firmwarebefore 002.2349a
• hp 1mr73a firmwarebefore 002.2349a
• hp 1mr73d firmwarebefore 002.2349a
• hp 1mr74a firmwarebefore 002.2349a

Versions reported by the vendor

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

• HP Inc. Certain HP OfficeJet Pro Printers

  • See HP Security Bulletin reference for affected versions.affected

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.