CVE Tools
Sign in

CVE-2018-3991

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...

Published: Feb 5, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-787
10.0CRITICAL
NVD MITRE
EPSS Score
34.3%
Top 1.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

Siemens AG
commercial·DEaka siemens
SICAM 230
ICS / OT / IoT
SISHIP EMCS
ICS / OT / IoT
SISHIP IMAC
ICS / OT / IoT
SISHIP IPMS
ICS / OT / IoT
simatic wincc open architecture
ICS / OT / IoT
WIBU-SYSTEMS AG
commercial·DEaka codemeter runtime, wibukey, wibukey network server management
WibuKey Network server managementOn-prem
Security Products / pki-crypto
wibu
commercialaka wibukey, codemeter
wibukeyOn-prem
Security Products / vuln-mgmt-scanner
and 1 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
Is your org exposed to CVE-2018-3991?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/pdf/ssa-760124.pdf
cert-portal.siemens.com
https://nvd.nist.gov/vuln/detail/CVE-2018-3989
nvd.nist.gov
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0657
talosintelligence.com
and 16 more references View all →
News mentions
Could not load news mentions.

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2018-3991 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows