No more command line input or complicated workarounds: Apple has released a downloadable patch for fixing the bash “Shellshock” bug.

The patch is available not only for OS X Mavericks v10.9.5., but also older versions of Apple software: OS X Lion v10.7.5, OS X Lion Server v10.7.5, and OS X Mountain Lion v10.8.5. There is currently no fix for machines running test versions of Yosemite.

Last week, an Apple spokesperson said that “The vast majority of OS X users are not at risk to recently reported bash vulnerabilities.” However, the company acknowledged it was working on the bash patch released Monday.

See also: New Security Flaws Render Shellshock Patch Ineffective

Security researchers recently discovered that bash, a UNIX command shell and language included in OS X, includes a 22-year-old vulnerability that allows hackers to sneak prompts in as variable names with the computer being none the wiser. As researchers discover more and more related flaws, new reinforced patches have been released every day.

Photo by Steven Tom