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CVE-2016-3989· NVD / CVE Program· CNA mitre

The NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, LANTIME M900, LANTIME M600, LANTIME M400,

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.

HighCVSS 8.1 · v3.0—Proof of concept No fix recorded
Published
Jul 3, 2016
Updated
Jun 16, 2026
EPSS
5.1% · 92th percentile
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Report tools

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Action score

34

Monitor

Low priority for now.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 5.1%

Affected systems

VendorProduct
meinbergntp server firmware
meinbergims-lantime m1000
meinbergims-lantime m3000
meinbergims-lantime m500
meinberglantime m100
meinberglantime m200
meinberglantime m300
meinberglantime m400
meinberglantime m600
meinberglantime m900
meinberglces
meinbergsyncfire 1100

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • meinberg ims-lantime m1000all versions
  • meinberg ims-lantime m3000all versions
  • meinberg ims-lantime m500all versions
  • meinberg lantime m100all versions
  • meinberg lantime m200all versions
  • meinberg lantime m300all versions
  • meinberg lantime m400all versions
  • meinberg lantime m600all versions
  • meinberg lantime m900all versions
  • meinberg lcesall versions
  • meinberg ntp server firmwareup to 6.0 inclusive
  • meinberg syncfire 1100all versions

Same product

meinberg: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-3962Stack-based buffer overflow in the NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, LANTIME M90
    31Monitor
  • CVE-2016-3988Multiple stack-based buffer overflows in the NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, L
    29Monitor
  • CVE-2014-5417Meinberg Radio Clocks LANTIME M-Series
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2016-07-17

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+14 d
  3. TodaySep 30, 2026+3741 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-264 · Permissions, Privileges, and Access Controls

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records