Is CVE-2018-3991 in the CISA KEV catalog?

No. CVE-2018-3991 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-3991?

CVE-2018-3991 has a CVSS v3 base score of 10.0 (CRITICAL).

What is the EPSS score for CVE-2018-3991?

CVE-2018-3991 has an EPSS score of 34.33% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2018-3991

CRITICALEPSS 98th pctl

10.0

CVSS v3

NVD

Description

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.

CWE-787Out-of-bounds Write

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

34.33%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.