Wild Pointer
A wild pointer is a pointer that has not been initialized and therefore references an unpredictable memory location.
“A pointer that references a location that is out of scope for that pointer or that does not exist.”
(Definition reproduced from the ISTQB Glossary. Copyright belongs to ISTQB.)
View the complete ISTQB GlossaryWhat is Wild Pointer?
Using a wild pointer can cause crashes, unexpected behavior, memory corruption, or security vulnerabilities because it accesses invalid memory.
Uninitialized pointer: Does not reference valid memory.
Programming defect: Can produce unpredictable failures.
Memory safety issue: Often detected through static or dynamic analysis.
Real World Example
A regulated product team is preparing a release where Wild pointer appears in reviews, test design conversations, or defect triage rather than as an isolated glossary word.
The risk is that the team treats Wild pointer as interchangeable with nearby ISTQB terms. That makes test scope blurry and can lead to weak evidence for the release decision.
The tester anchors the discussion in the official definition, asks where the concept appears in the product, and designs examples that show the difference between Wild pointer and similar ideas.
The page becomes useful in practice because Wild pointer is connected to a specific testing decision, not memorized as a detached definition.
Practice Questions
Question 1
Which statement BEST describes Wild pointer in the context of ISTQB terminology?
Question 2
A tester needs to explain Wild pointer to a non‑technical stakeholder. Which approach is MOST appropriate?
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