common evil; common fault
Refers to a flaw or vice that is widespread in a group, society, or system. Often used in critical or analytical contexts.
Bureaucracy is a common evil of large organizations.
Long working hours can be cited as a common fault in this industry.
Compound of 通 (common, widespread) and 弊 (evil, harmful practice). The exact historical derivation is uncertain, but the meaning is transparent from the kanji.