CVSS v3
9.8
CRITICAL
EPSS Score
79.3%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
An exploitable heap overflow vulnerability exists in the WkbProgramLow function of WibuKey Network server management, version 6.40.2402.500. A specially crafted TCP packet can cause a heap overflow, potentially leading to remote code execution. An attacker can send a malformed TCP packet to trigger this vulnerability.
An exploitable heap overflow vulnerability exists in the WkbProgramLow function of WibuKey Network server management, version 6.40.2402.500. A specially crafted TCP packet can cause a heap overflow, potentially leading to remote code execution. An attacker can send a malformed TCP packet to trigger this vulnerability.
Active exploitation of CVE-2018-3991 has not been confirmed. The EPSS score is 79.3%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2018-3991 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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Ranked by exploit probability (EPSS).