vulnerability

noun3

1. •
   The state of being vulnerable; susceptibility to attack or injury, either physical or emotional; the state or condition of being weak or poorly defended.

   • The country recognized their defence vulnerability after an airplane landed in front of the central square without any consequences.
2. •
   A specific weakness in the protections or defences that (literally or figuratively) surround someone or something.
3. •
   A weakness which allows an attacker to reduce a system's security.

   • Experts told CNN it could take weeks to address the vulnerabilities and that suspected Chinese hackers are already attempting to exploit it. — 2021