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CVE-2017-6458

Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.

Published: Mar 27, 2017Updated: May 13, 2026 Sources: CVE List NVD csafCWE-119
NVD MITRE
8.8CVSSHIGH
EPSS Score
6.5%
Top 7.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

All versions of the SIMATIC CP 443-1 OPC UA contain multiple vulnerabilities in the underlying third party component NTP. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-119

Affected Products

ntpntp
On-prem
Networking Infrastructure / dns-dhcp-ntp
hpux-ntphpeHardware Firmware
mac os xapple
On-premOS
Operating Systems / unix-bsd
simatic net cp 443-1 opc ua firmwaresiemens
On-prem
Enterprise Software / collaboration-groupware
n/an/a
ntposs-projectNetworking Infrastructureaka ntp daemon
hpecommercialUSHardware Firmwareaka hpe
applecommercialUSMobile Appsaka apple inc., apple computer
siemenscommercialDEEnterprise Softwareaka siemens ag

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-211752.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/txt/ssa-211752.txt
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
cert-portal.siemens.com
and 42 more references View all →

Timeline

Published
Mar 27, 2017
Last Updated
May 13, 2026

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