CVE-2016-3989
A public proof of concept exists; no exploitation attested.
- Published2016-07-03
- WeaknessCWE-264
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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.
Timeline
dates in UTC- 2016-07-0314:59CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-3989?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-3989?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
9 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Meinberg NTP Time Server Vulnerabilities
Meinberg IMS-LANTIME M3000: <=6.0 · Meinberg IMS-LANTIME M1000: <=6.0 · Meinberg IMS-LANTIME M500: <=6.0 · +8 more
Fix
- Mitigation from the vendor CISA ICSA-16-175-03 · 11 productsMeinberg has produced a new firmware Version 6.20.004. The new firmware can be downloaded by using the link below: (https://urldefense.proofpoint.com/v2/url?u=http-3A__www.meinberg.de_download_firmware_lantime_v6_firmware-2D6.20.004-2Dx86.rel&d=BQIFaQ&c=54IZrppPQZKX9mLzcGdPfFD1hxrcB__aEkJFOKJFd00&r…
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.08.1read 2026-10-23
- NVDCVSS 2.08.5read 2026-10-23
- NVDweakness (CWE)CWE-264read 2026-10-23
- FIRST EPSSEPSS score5.1 %2026-10-22
- Exploit-DBdetectionread 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Published
- 2016-07-03
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2016-3989?
Is CVE-2016-3989 actively exploited?
What is the CVSS score for CVE-2016-3989?
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Related vulnerabilities
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