Input Validation Error High Vega has detected behavior indicative of a possible format string vulnerability. Format string vulnerabilities occur when untrustworthy input is used as or as part of the format string parameter passed to one of the printf() family of C library calls (and derivatives). Format string vulnerabilities can be used to overwrite memory, resulting in remote code execution. If there is indeed a format string vulnerability present, the attacker could be able to overwrite memory of the target process. Overwriting memory can allow for the execution of arbitrary code. The developer should investigate the code in question to determine if it is at all possible that a format string vulnerability could be present. This can be fixed by ensuring that untrustworthy data is not passed to the printf() function. Uncontrolled format string (Wikipedia)