void GfxDeviceCMYKColorSpace::getRGB(GfxColor *color, GfxRGB *rgb) {
  double c, m, y, k, c1, m1, y1, k1, r, g, b, x;
    
  c = colToDbl(color->c[0]);
  m = colToDbl(color->c[1]);
  y = colToDbl(color->c[2]);
  k = colToDbl(color->c[3]);
  c1 = 1 - c;
  m1 = 1 - m;
  y1 = 1 - y;
  k1 = 1 - k;
  x = c1 * m1 * y1 * k1; // 0 0 0 0
  r = g = b = x;
  x = c1 * m1 * y1 * k;  // 0 0 0 1
  r += 0.1373 * x;
  g += 0.1216 * x;
  b += 0.1255 * x;
  x = c1 * m1 * y  * k1; // 0 0 1 0
  r += x;
  g += 0.9490 * x;
  x = c1 * m1 * y  * k;  // 0 0 1 1
  r += 0.1098 * x;
  g += 0.1020 * x;
  x = c1 * m  * y1 * k1; // 0 1 0 0
  r += 0.9255 * x;
  b += 0.5490 * x;
  x = c1 * m  * y1 * k;  // 0 1 0 1
  r += 0.1412 * x;
  x = c1 * m  * y  * k1; // 0 1 1 0
  r += 0.9294 * x;
  g += 0.1098 * x;
  b += 0.1412 * x;
  x = c1 * m  * y  * k;  // 0 1 1 1
  r += 0.1333 * x;
  x = c  * m1 * y1 * k1; // 1 0 0 0
  g += 0.6784 * x;
  b += 0.9373 * x;
  x = c  * m1 * y1 * k;  // 1 0 0 1
  g += 0.0588 * x;
  b += 0.1412 * x;
  x = c  * m1 * y  * k1; // 1 0 1 0
  g += 0.6510 * x;
  b += 0.3137 * x;
  x = c  * m1 * y  * k;  // 1 0 1 1
  g += 0.0745 * x;
  x = c  * m  * y1 * k1; // 1 1 0 0
  r += 0.1804 * x;
  g += 0.1922 * x;
  b += 0.5725 * x;
  x = c  * m  * y1 * k;  // 1 1 0 1
  b += 0.0078 * x;
  x = c  * m  * y  * k1; // 1 1 1 0
  r += 0.2118 * x;
  g += 0.2119 * x;
  b += 0.2235 * x;
  rgb->r = clip01(dblToCol(r));
  rgb->g = clip01(dblToCol(g));
  rgb->b = clip01(dblToCol(b));
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.