Home/CWE/Off-by-one Error
Weakness

Off-by-one Error

CWE-193 · Base · Draft

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

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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-682 · Incorrect Calculation
Related
CanPrecedeCWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
CanPrecedeCWE-170 · Improper Null Termination
CanPrecedeCWE-617 · Reachable Assertion
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CVEs With This Weakness

220
A sample of the 220 CVEs tagged with this weakness.
CVECVE-2026-7572
CVECVE-2026-6861
CVECVE-2026-5123
CVECVE-2026-4887
CVECVE-2026-44603
CVECVE-2026-43964
CVECVE-2026-43860
CVECVE-2026-41502
CVECVE-2026-40312
CVECVE-2026-40254
CVECVE-2026-34085
CVECVE-2026-33997
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