Home/CWE/Improper Handling of Additional Special Element
Weakness

Improper Handling of Additional Special Element

CWE-167 · Base · Draft

The product receives input from an upstream component, but it does not handle or incorrectly handles when an additional unexpected special element is provided.

△

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-159 · Improper Handling of Invalid Use of Special Elements
ChildOfCWE-228 · Improper Handling of Syntactically Invalid Structure
⚠

CVEs With This Weakness

5
CVEs tagged with this weakness.
CVECVE-2025-30656
CVECVE-2025-25006
CVECVE-2023-4809
CVECVE-2023-3580
CVECVE-2023-0643
External lookups - second-class, for what we don’t hold ourselves
MITRE CWE
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin