Home/CWE/Generation of Predictable Numbers or Identifiers
Weakness

Generation of Predictable Numbers or Identifiers

CWE-340 · Class · Incomplete

The product uses a scheme that generates numbers or identifiers that are more predictable than required.

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Weakness Relationships

Where this weakness sits in the CWE hierarchy. Walk up to broader classes or down to more specific variants.
Parent of this (broader)
ChildOfCWE-330 · Use of Insufficiently Random Values
Children (more specific)
ParentOfCWE-341 · Predictable from Observable State
ParentOfCWE-342 · Predictable Exact Value from Previous Values
ParentOfCWE-343 · Predictable Value Range from Previous Values
Related
CanPrecedeCWE-384 · Session Fixation
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CVEs With This Weakness

41
A sample of the 41 CVEs tagged with this weakness.
CVECVE-2026-8503
CVECVE-2026-5085
CVECVE-2026-5084
CVECVE-2026-5083
CVECVE-2026-5082
CVECVE-2026-5081
CVECVE-2026-5080
CVECVE-2026-4269
CVECVE-2026-40496
CVECVE-2026-3256
CVECVE-2026-3255
CVECVE-2026-28810
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