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Vulnerability record · CVE-2016-3989 · published 3 July 2016

CVE-2016-3989: Meinberg ntp server firmware permissions and access controls vulnerability

MMeinberg · Ntp Server Firmware

The NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, LANTIME M900, LANTIME M600, LANTIME M400, LANTIME M300, LANTIME M200, LANTIME M100, SyncFire 1100, and LCES devices with firmware before 6.20.004 allows remote authenticated users to obtain root privileges for writing to unspecified scripts, and consequently obtain sensitive information or modify data, by leveraging access to the nobody account.

8.1 CVSS 3.0 High EPSS 5.1% · top 7.9% CWE-264 · Permissions and access controls
8.1CVSS 3.0 base score, v2 8.5
5.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
12Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

The NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, LANTIME M900, LANTIME M600, LANTIME M400, LANTIME M300, LANTIME M200, LANTIME M100, SyncFire 1100, and LCES devices with firmware before 6.20.004 allows remote authenticated users to obtain root privileges for writing to unspecified scripts, and consequently obtain sensitive information or modify data, by leveraging access to the nobody account.

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

Affected products

12 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://ics-cert.us-cert.gov/advisories/ICSA-16-175-03 Third Party AdvisoryUS Government Resource
https://www.exploit-db.com/exploits/40120/
https://ics-cert.us-cert.gov/advisories/ICSA-16-175-03 Third Party AdvisoryUS Government Resource
https://www.exploit-db.com/exploits/40120/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2014-5417Meinberg ntp server firmware cross-site scripting vulnerabilityCross-site scripting (XSS) vulnerability in Meinberg NTP Server firmware on LANTIME M-Series devices 6.15.019 and earlier allows remote attackers to …EPSS 1.8%7.3CVE-2016-3988Meinberg ntp server firmware memory buffer overflow vulnerabilityMultiple stack-based buffer overflows in the NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, LANTIME M9…EPSS 1.1%7.3CVE-2016-3962Meinberg ntp server firmware memory buffer overflow vulnerabilityStack-based buffer overflow in the NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, LANTIME M900, LANTIM…EPSS 5.2%5.1CVE-2015-3246libuser userhelper direct /etc/passwd write race conditionlibuser before 0.56.13-8 and 0.60 before 0.60-7, as used by the userhelper program in the usermode package, modifies /etc/passwd directly instead of …KEVEPSS 8.8%analysed6.6CVE-2015-1769Windows Mount Manager symlink mishandling allows local privilege escalationThe Windows Mount Manager mishandles symbolic links, allowing a crafted USB device to trigger arbitrary code execution. Because the flaw is in a core…KEVEPSS 4.1%analysed7.8CVE-2016-3643SolarWinds Virtualization Manager sudo misconfiguration privilege escalationSolarWinds Virtualization Manager 6.3.1 and earlier ship with a misconfigured sudo policy that lets a local user run privileged commands, as shown by…KEVEPSS 3.7%analysed

Source: NIST National Vulnerability Database (record CVE-2016-3989), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.