CWE Reference

CWE-422: Unprotected Windows Messaging Channel ('Shatter')

Official CWE-422 CWE context with Glexia analysis, remediation guidance, related CVEs, and ATT&CK context.

Release 4.20weaknessDraft

Glexia's Take

CWE-422: Unprotected Windows Messaging Channel ('Shatter')

Unprotected Windows Messaging Channel ('Shatter') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Executive Impact

Access Control: Gain Privileges or Assume Identity,Bypass Protection Mechanism

Developer Pattern

CWE-422 is the kind of defect developers can usually prevent with explicit validation, safer framework defaults, and tests that exercise hostile input or unsafe state transitions.

Confidence

high confidence from CWE-422, 4.20.

Official CWE Definition

CWE-422: Unprotected Windows Messaging Channel ('Shatter')

The product does not properly verify the source of a message in the Windows Messaging System while running at elevated privileges, creating an alternate channel through which an attacker can directly send a message to the product.

Type: weakness
Abstraction: Variant
Status: Draft
Source: MITRE CWE definition

Developer And Remediation Guidance

How teams prevent and detect this weakness

Causes

Missing validation
Unsafe defaults
Insufficient authorization or memory-safety invariant

Remediation

Architecture and Design: Always verify and authenticate the source of the message.

Detection

Code review
SAST
DAST
Focused regression tests

Mappings

Related CVEs, CWEs, and ATT&CK context

Related CWEs

Related CVEs

Related CVE mappings appear after CVE records are cross-indexed.

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ATT&CK Relevance

ATT&CK relevance is shown only when reviewed or responsibly inferred.