The vulnerability of the parameter PL_regkind[OP(n)] == NOTHING in the Perl programming language allows a hacker to execute arbitrary code.

The vulnerability of the parameter PLregkindOPn == NOTHING in the Perl programming language is related to integer overflow. Exploiting this vulnerability could allow a remote attacker to execute arbitrary code...

Integer overflow

Perl before 5.30.3 has an integer overflow related to mishandling of a "PLregkindOPn == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection...