V

Viessmann

Germany Proprietary www.viessmann.com ↗
C
CAUTION
5
Total CVEs
0
Crit / High
2
Medium
60%
Unpatched
0%
Patched
5.3
Avg CVSS
0
CISA KEV
// Data sourced from NVD · CISA KEV · RHSA · GHSA · Debian · OSV · EPSS · Exploit-DB How we collect data →
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▸ CVE Trend by Year
▸ Patch Coverage
Patched
0%
Unpatched
60%
Under Review
40%
✓ 0 patched ✗ 3 unpatched ~ 2 under review
▸ Intelligence by Audience
PoC Available
3 / 20 shown
CISA KEV (Exploited)
0
Shodan Dorks
ssl:"viessmann" port:443
org:"Viessmann" http.status:200
Top EPSS (Exploitation Probability)
CVE-2023-5222 74.52% exploitation probability
CVE-2023-45852 15.25% exploitation probability
CVE-2023-5702 14.54% exploitation probability
CVE-2025-9494 0.68% exploitation probability
CVE-2025-9495 0.24% exploitation probability
Quick Facts for Reporting
Total CVEs tracked
5
Critical severity
0
Actively exploited (CISA)
0
Unpatched ratio
60%
Avg CVSS score
5.3
Security grade
C (CAUTION)
NVD Data Attribution
Source: NIST National Vulnerability Database (NVD) + GitHub Advisory Database.
Data aggregated by Valters IT Hub · valtersit.com
Last updated: 2026-08-03
Security Risk Score (for investors)
LOW
Vuln Volume
POOR
Patch Responsiveness
LOW
CISA Exposure
⚠ Not financial advice. Past security incidents do not guarantee future stock performance.
▸ Security News Google News
CISA warns of ICS vulnerabilities in Viessmann, iniNet, Rockwell Automation, BPL Medical Technologies - Industrial Cyber
Industrial Cyber 2024-09-12
▸ Recent CVEs showing 20 of 5
CVE IDSeverityPatchEPSSDate
CVE-2025-9495 8.7 HIGH PATCH UNDER REVIEW 0.24% 2025-09-23
CVE-2025-9494 8.5 HIGH PATCH UNDER REVIEW 0.68% 2025-09-23
CVE-2023-5702 PoC 4.3 MEDIUM UNKNOWN / UNPATCHED 14.54% 2023-10-23
CVE-2023-45852 PoC 9.8 CRITICAL UNKNOWN / UNPATCHED 15.25% 2023-10-14
CVE-2023-5222 PoC 6.3 MEDIUM UNKNOWN / UNPATCHED 74.52% 2023-09-27
View all 5 CVEs for Viessmann →
▸Intel
HQAllendorf (Eder), Germany
Founded1917
Employees12,000
CEOMaximilian Viessmann
CountryGermany
LicenseProprietary
Trust ScoreC — CAUTION
Max CVSS6.3
Last Updated2026-08-03
▸Top Weaknesses
CWE-78
Unknown Weakness Type
2 occurrences in Viessmann CVEs (40% of total)
CWE-78 ⓘ
2
CWE-287
Improper Authentication
1 occurrence in Viessmann CVEs (20% of total)
CWE-287 ⓘ
1
CWE-259
Unknown Weakness Type
1 occurrence in Viessmann CVEs (20% of total)
CWE-259 ⓘ
1
CWE-77
Unknown Weakness Type
1 occurrence in Viessmann CVEs (20% of total)
CWE-77 ⓘ
1
▸Company Profile

Viessmann is a German multinational company specializing in heating, industrial, and refrigeration systems, with a growing focus on IoT-enabled energy management and smart home solutions. Their software platforms, such as the Viessmann One Base and Vitoguide, connect heating systems to cloud services, making them relevant to cybersecurity due to potential vulnerabilities in connected devices and energy infrastructure. With only 5 tracked CVEs, the vendor's cybersecurity exposure is limited but notable in the context of critical infrastructure.

▸Response Metrics
Est. MTTR ⓘ ~500 days (Critical)
Mean Time To Remediate. Estimates days from CVE disclosure to patch.
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
CVE Trend ⓘ ↘ -33% better
CVE count 2025 vs 2023:  3 → 2 CVEs
Patch Speed ⓘ Poor (>65% open)
60% of CVEs still unpatched.  Excellent: <20% · Good: 20-40% · Avg: 40-65% · Poor: >65%
▸ Financial Risk Estimate
Est. GDPR Low
€600K
Est. GDPR High
€6.0M

Based on 0 critical CVEs, 0 CISA KEV, 100% unpatched. Model: GDPR Art.83 · not legal advice.

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