CWE-1335: Incorrect Bitwise Shift of Integer
low-riskAn integer value is specified to be shifted by a negative amount or an amount greater than or equal to the number of bits contained in the value causing an unexpected or indeterminate result.
Abstraction: Base
Common Consequences
Integrity
→
DoS: Crash, Exit, or Restart
Detection Methods
Automated Static Analysis
Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)
Real-World Examples (4)
| CVE | CVSS | EPSS | KEV |
|---|---|---|---|
| CVE-2016-9842 | 8.8 | 12.1% | — |
| CVE-2026-4426 | 6.5 | 0.1% | — |
| CVE-2023-52810 | 8.4 | 0.0% | — |
| CVE-2023-3161 | 5.5 | 0.0% | — |
9
/ 100
low-risk
Active Threat
9/50 · Minimal
Exploit Availability
0/50 · Minimal