This study examines the unsteadiness of the separated shear layer across uneven edges in a hypersonic wedge-cavity flow at an upstream Mach number of \(M = 6\) , focusing on the effects of the excess height-to-depth ratio ( \(\Delta h/D = -0.5, -0.25, 0, 0.25\) , and 0.5) at the trailing edge. The cavity itself has a length-to-depth ratio (L/D) of 3.58. Using two-dimensional unsteady laminar computational studies with a Reynolds number ( \(Re_D\) ) of 75,000, the research analyzes how \(\Delta h/D\) variations impact pressure loadings. As \(\Delta h/D\) changes from negative to positive, mean pressure loading increases by up to 39% compared to the baseline. Fluctuation loading increases until the baseline, then decreases by up to 25% on the positive side. Negative \(\Delta h/D\) excites higher-order Rossiter modes ( \(n=3,4\) ), while positive \(\Delta h/D\) excites lower-order modes ( \(n=2\) ). The dominant mode driving unsteadiness is the unstable shear layer, with energy content decreasing from 70% to 20% as \(\Delta h/D\) shifts from negative to positive.