CVE-2019-16199

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 13%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via an HTTP POST request to certain URLs related to the ReGa core process.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
96.0%
KEV
Not listed

Published

September 17, 2019

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jul 6, 2026
No patch confirmed yet.
generic

CVE-2019-16199 eQ-3 Homematic CCU2 prior 2.47.18 and CCU3 prior 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via a HTTP POST request to certain URLs related to the ReGa core process – psytester – Testing is my passion. Sharing knowledge is my contribution.

https://psytester.github.io/CVE-2019-16199/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 40× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:41 UTCEG score recompute
  2. 2026-07-22 22:21 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
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  49. 2026-05-29 13:42 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
  51. 2026-05-27 14:26 UTCEG score recompute
  52. 2026-05-27 14:26 UTCGHSA enrichment
  53. 2026-05-27 13:38 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2019-16199?
CVE-2019-16199 is a critical vulnerability published on September 17, 2019. eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via an HTTP POST request to certain URLs related to the ReGa core process.
When was CVE-2019-16199 disclosed?
CVE-2019-16199 was first published in the National Vulnerability Database on September 17, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-16199 actively exploited?
CVE-2019-16199 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-16199?
CVE-2019-16199 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-16199?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-16199, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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