diff --git a/pkgs/development/compilers/mono/4.0.nix b/pkgs/development/compilers/mono/4.0.nix
index 8621751e5a1..f13883db74f 100644
--- a/pkgs/development/compilers/mono/4.0.nix
+++ b/pkgs/development/compilers/mono/4.0.nix
@@ -3,4 +3,7 @@ callPackage ./generic.nix (rec {
   inherit Foundation libobjc;
   version = "4.0.4.1";
   sha256 = "1ydw9l89apc9p7xr5mdzy0h97g2q6v243g82mxswfc2rrqhfs4gd";
+  meta = {
+    knownVulnerabilities = [ "CVE-2009-0689" ];
+  };
 })