"The International Cricket Council today confirmed that an independent analysis has found the bowling action of Zimbabwe's Malcolm Waller to be illegal and, as such, the off-spinner has been suspended from bowling in international cricket with immediate effect," the ICC said in a statement.
The analysis revealed that all of his off-spin deliveries exceeded the 15 degrees level of tolerance permitted under the regulations.
Waller was reported after the second Test against Bangladesh in Khulna last month. The analysis was performed by the ICC's accredited team of Human Movement Specialists at the High Performance Centre in Pretoria on December 7.