The EPSS (Exploit Prediction Scoring System) estimates how likely a vulnerability is to be exploited. Higher EPSS scores indicate a higher likelihood of exploitation.

Option A (Target 1) :

EPSS 0.6 (60% chance of exploitation)

CVSS 4 (Medium severity)

Best candidate since it has the highest likelihood of exploitation.

Option B (Target 2) : EPSS 0.3 (30%) is lower, making it less likely to be attacked.

Option C (Target 3) : EPSS 0.6 is high, but CVSS 1 is very low, meaning the vulnerability is not critical.

Option D (Target 4) : CVSS 4.5 is higher, but EPSS 0.4 is lower, meaning attackers are less likely to exploit it.

Reference: CompTIA PenTest+ PT0-003 Official Guide -- Vulnerability Prioritization with EPSS & CVSS