diff --git a/pkgs/servers/asterisk/default.nix b/pkgs/servers/asterisk/default.nix
index 49afdf7348b..7f4b237e8cd 100644
--- a/pkgs/servers/asterisk/default.nix
+++ b/pkgs/servers/asterisk/default.nix
@@ -48,6 +48,11 @@ let
       url = "https://github.com/pjsip/pjproject/commit/bc4812d31a67d5e2f973fbfaf950d6118226cf36.patch";
       sha256 = "sha256-bpc8e8VAQpfyl5PX96G++6fzkFpw3Or1PJKNPKl7N5k=";
     })
+    (fetchpatch {
+      name = "CVE-2023-27585.patch";
+      url = "https://github.com/pjsip/pjproject/commit/d1c5e4da5bae7f220bc30719888bb389c905c0c5.patch";
+      hash = "sha256-+yyKKTKG2FnfyLWnc4S80vYtDzmiu9yRmuqb5eIulPg=";
+    })
   ];
 
   common = { version, sha256, externals, pjsip_patches ? [ ] }: stdenv.mkDerivation {