CVE-2016-3989

HIGH

Meinberg IMS-LANTIME - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2016-3989. PoCs published by b0yd.

AI-analyzed exploit summary This exploit targets CVE-2016-3989, a buffer overflow vulnerability in Meinberg NTP devices. It leverages a stack-based overflow to execute arbitrary commands, ultimately achieving remote code execution via a reverse shell.

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.

Exploits (1)

exploitdb WORKING POC
by b0yd · pythonremotehardware
https://www.exploit-db.com/exploits/40120

This exploit targets CVE-2016-3989, a buffer overflow vulnerability in Meinberg NTP devices. It leverages a stack-based overflow to execute arbitrary commands, ultimately achieving remote code execution via a reverse shell.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: Meinberg NTP Time Server (Lantime configuration utility 1.27, ELX800/GPS M4x V5.30p)
No auth needed
Prerequisites: Network access to the target device · A listener set up to receive the reverse shell
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/40120/
Third Party Advisory, US Government Resource x_refsource_misc
https://ics-cert.us-cert.gov/advisories/ICSA-16-175-03

Scores

CVSS v3 8.1
EPSS 0.0509
EPSS Percentile 91.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Details

CWE
CWE-264
Status published
Products (12)
meinberg/ims-lantime_m1000
meinberg/ims-lantime_m3000
meinberg/ims-lantime_m500
meinberg/lantime_m100
meinberg/lantime_m200
meinberg/lantime_m300
meinberg/lantime_m400
meinberg/lantime_m600
meinberg/lantime_m900
meinberg/lces
... and 2 more
Published Jul 03, 2016
Tracked Since Feb 18, 2026