The latest PSP firmware update -- dubbed version 5.03 -- should be making its way onto your portable pal soon. According to Sony's blog, the update "improves system software stability during use of some features" and continues the trend of ambiguously altering unspecified thingies.
More specific are the accompanying patch notes, which highlight the squashing of "security vulnerabilities in the system software." It seem likely that the infamous Gripshift exploit, which allowed the PSP-3000 to run homebrew application, has been eradicated. Where will the next buffer overflow come from?
[Via PSP Fanboy]