Application Security
CWE-482 Comparing Instead of Assigning in C and C++
A double equals sign where a single one was meant means the assignment never happens. Learn how to spot it and why tooling catches it quickly.
Oct 18, 20262 min read
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CWE-481 Assigning Instead of Comparing in Conditions
Writing a single equals sign where two were meant changes a value and makes the test always true. See the pattern and the easy guards against it.
Oct 18, 20262 min read
Application Security
CWE-480 Use of Incorrect Operator: Small Typos, Big Auth Bugs
One wrong operator can flip a security check. CWE-480 covers typos like loose versus strict comparison and how static analysis and review catch them.
Oct 18, 20263 min read
Application Security
CWE-48 Internal Whitespace Path Equivalence and Quoting Bugs
Spaces inside filenames cause unquoted command arguments and query string tricks. CWE-48 explained with a fix you can apply today.
Oct 18, 20263 min read
Application Security
CWE-479 Non-Reentrant Functions in Signal Handlers
Calling malloc or syslog inside a signal handler can corrupt memory when the signal lands mid call. Here is why it happens and the flag pattern that avoids it.
Oct 18, 20263 min read
Application Security
CWE-478 Missing Default Case in a Switch Statement
A switch with no default quietly ignores unexpected values and lets later logic run on bad data. Learn how to handle every case on purpose.
Oct 18, 20263 min read
Application Security
CWE-477 Use of Obsolete Functions: Why Deprecated Calls Matter
Deprecated functions are a sign that code has gone unreviewed. CWE-477 explains why they matter and how to replace them without breaking behavior.
Oct 18, 20262 min read
Application Security
CWE-476 NULL Pointer Dereference: Causes, Detection and Fixes
A NULL pointer dereference usually crashes the process, and in rare cases does more. See how it appears in C and Java, how to find it and how to prevent it.
Oct 18, 20264 min read
Application Security
CWE-475 Undefined Behavior for Input to an API
Some APIs only behave predictably when a control parameter has a specific value. CWE-475 is about calling them with anything else.
Oct 18, 20262 min read
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