diff --git a/src/IntCurve/IntCurve_IntConicConic_1.cxx b/src/IntCurve/IntCurve_IntConicConic_1.cxx
index 825d0ff2b8..aeed78226f 100644
--- a/src/IntCurve/IntCurve_IntConicConic_1.cxx
+++ b/src/IntCurve/IntCurve_IntConicConic_1.cxx
@@ -719,7 +719,11 @@ void IntCurve_IntConicConic::Perform(const gp_Circ2d& Circle1
   PeriodicInterval C1Domain(DomainCirc1); 
   //-- On se ramene entre 0 et 2PI
   Standard_Real deltat = C1Domain.Bsup-C1Domain.Binf;
-  if(deltat>=PIpPI) { deltat=PIpPI-1e-14; } 
+  if(deltat>=PIpPI)
+  {
+    // make deltat not including the upper limit
+    deltat=NextAfter(PIpPI, 0.);
+  }
   
   while(C1Domain.Binf >= PIpPI)
     C1Domain.Binf-=PIpPI;
@@ -732,8 +736,8 @@ void IntCurve_IntConicConic::Perform(const gp_Circ2d& Circle1
   deltat = C2Domain.Bsup-C2Domain.Binf;
   if(deltat>=PIpPI)
   {
-    deltat=PIpPI-1e-14;
-  } 
+    deltat=NextAfter(PIpPI, 0.);
+  }
 
   while(C2Domain.Binf >= PIpPI)
     C2Domain.Binf-=PIpPI;
@@ -1027,19 +1031,13 @@ void IntCurve_IntConicConic::Perform(const gp_Circ2d& Circle1
 
         if(Opposite)
         {
-          if(nbsol!=3)
-          {
             if(C2inf<C2sup)
               C2inf+=PIpPI;
-          }
         }
         else
         {
-          if(nbsol!=3)
-          { 
             if(C2sup<C2inf)
               C2sup+=PIpPI;
-          }
         }
 
         IntRes2d_IntersectionPoint NewPoint2(P1b,C1sup,C2sup,T1b,T2b,Standard_False);
diff --git a/tests/bugs/moddata_3/bug25876 b/tests/bugs/moddata_3/bug25876
new file mode 100755
index 0000000000..b4e1062e15
--- /dev/null
+++ b/tests/bugs/moddata_3/bug25876
@@ -0,0 +1,36 @@
+puts "============"
+puts "CR25876"
+puts "==========="
+puts ""
+###############################################################################
+# Geom2dAPI_InterCurveCurve returns only one intersection point instead of two intersection points
+###############################################################################
+
+restore [locate_data_file bug25876_oc_test_firstcircle.brep] e1
+restore [locate_data_file bug25876_oc_test_secondcircle.brep] e2
+
+explode e1
+explode e2
+
+mk2dcurve c1 e1_1
+mk2dcurve c2 e2_1
+
+set inter1 [2dintersect c1 c2 1e-3]
+set int1 [regexp {Intersection point 2} ${inter1}]
+if { ${int1} == 0 } {
+    puts "Error : Second intersection is not found"
+} 
+
+#smallview -2D-
+view 1 -2D- 728 450 400 400
+2dfit
+xwd ${imagedir}/${test_image}_1.png
+donly c1 c2
+
+set inter2 [2dintersect c1 c2 1e-7]
+set int2 [regexp {Intersection point 2} ${inter2}]
+if { ${int2} == 0 } {
+    puts "Error : Second intersection is not found"
+} 
+
+xwd ${imagedir}/${test_image}_2.png