A judgment allowing an account, including a guardian's intermediate account, after due notice, shall be res adjudicata as to all exceptions which could or might have been taken to the account, and shall constitute an approval of the correctness and propriety of the account, the legality and propriety of the investments and other assets, the legality and propriety of the changes in investments or other assets, and the legality and propriety of other matters, and also shall exonerate and discharge the fiduciary from all claims of all interested parties and of those in privity with or represented by interested parties except:
N.J.S. § 3B:17-8