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CVE-2019-3863

A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than u...

Published: Mar 25, 2019Updated: Dec 19, 2025 Sources: CVE List NVD BDU csafCWE-190
NVD MITRE
7.5CVSSHIGH
EPSS Score
3.4%
Top 12.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version >= V3.1.0 and < V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). These GNU/Linux vulnerabilities have been externally identified. Siemens has released new versions for the affected products and recommends to update to the latest versions. Note: This SSA advises vulnerabilities for firmware version V3.1 only; for versions < V3.1 refer to Siemens Security Bulletin SSB-439005 ( https://cert-portal.siemens.com/productcert/html/ssb-439005.html).

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-190CWE-787

Affected Products

Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
OpenSUSE LeapNovell Inc.
On-premOS
Operating Systems / linux-distro
FedoraFedora Project
On-premOS
Operating Systems / linux-distro
PeopleSoft Enterprise PeopleToolsOracle Corp.
On-prem
Databases / relational
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
novell inc.commercialUSOperating Systems
fedora projectoss-projectUSOperating Systemsaka fedora
oracle corp.commercialUSDatabasesaka oracle
and 24 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.oracle.com/technetwork/topics/security/public-vuln-to-advisory-mapping-093627.html&#13;
oracle.com
https://nvd.nist.gov/vuln/detail/CVE-2019-3863&#13;
nvd.nist.gov
https://www.libssh2.org/CVE-2019-3863.html&#13;
libssh2.org
and 32 more references View all →

Timeline

Published
Mar 25, 2019
Last Updated
Dec 19, 2025

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