CVE-2015-7974

NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via...

Published: Jan 26, 2016Updated: May 6, 2026 Sources: CVE List NVD csafCWE-287

7.7HIGH

Description

TIM 4R-IE devices contain multiple vulnerabilities in the integrated NTP component as listed below. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:NConfidentiality

None

I:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-287

Affected Products

siemens

commercial·DEaka siemens ag

tim 4r-ie firmware

ICS / OT / IoT

tim 4r-ie dnp3 firmware

commercial·US

oss-projectaka ntp daemon

ntpOn-prem

Networking Infrastructure / dns-dhcp-ntp

debian

oss-project·GBaka debian gnu/linux

debian linuxOn-premOS

Operating Systems / linux-distro

and 1 more affected products View all →

Exploitability

Official Patch Available

Workaround Available

Is your org exposed to CVE-2015-7974?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://cert-portal.siemens.com/productcert/csaf/ssa-497656.json

cert-portal.siemens.com

https://cert-portal.siemens.com/productcert/html/ssa-497656.html

cert-portal.siemens.com

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-103-11.json

raw.githubusercontent.com

and 21 more references View all →

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