Siemens vulnerabilities
- Siemens has 744 CVE records published between 28 Oct 2023 and 28 Oct 2026, ranking #20 of 420 vendors on this site by that count.
- Of the 744 with a CVSS score, 534 (71.8%) are rated critical or high; 0 (0% of all) have no CVSS score.
- 2 vulnerabilities attributed to Siemens are listed in CISA's Known Exploited Vulnerabilities (KEV) catalog; the most recent, CVE-2026-110936, was added on 20 Oct 2026.
- None of them is marked as known to be used in ransomware campaigns.
- For the 2 KEV entries with a published CVE record, the median time from CVE publication to KEV listing is 968 days.
Records are attributed to Siemens from the vendor named in the source records. About the data.
CVE records per year
Show data as a table
| Year | CVE records |
|---|---|
| 2017 | 7 |
| 2018 | 66 |
| 2019 | 127 |
| 2020 | 94 |
| 2021 | 294 |
| 2022 | 297 |
| 2023 | 254 |
| 2024 | 297 |
| 2025 | 275 |
| 2026 | 135 |
2026 is partial (through 28 Oct 2026), shown in a lighter bar.
| Year | Records | Critical | High | Critical or high | Not scored |
|---|---|---|---|---|---|
| 2026 | 135 | 14 | 82 | 71.1% | 0% |
| 2025 | 275 | 28 | 170 | 72% | 0% |
| 2024 | 297 | 29 | 188 | 73.1% | 0% |
| 2023 | 254 | 25 | 169 | 76.4% | 0% |
| 2022 | 297 | 16 | 74 | 64.3% | 52.9% |
| 2021 | 294 | 5 | 23 | 62.2% | 84.7% |
| 2020 | 94 | 1 | 11 | 60% | 78.7% |
| 2019 | 127 | 3 | 7 | 58.8% | 86.6% |
| 2018 | 66 | 1 | 2 | 75% | 93.9% |
| 2017 | 7 | 0 | 4 | 100% | 42.9% |
| Before 2017 | 3 | ||||
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Exploited vulnerabilities in CISA's KEV catalog
| CVE | Product | Name | Added | Ransomware |
|---|---|---|---|---|
| CVE-2026-110936 | Software Center | Siemens Software Center Uncontrolled Search Path Element Vulnerability | 2026-10-20 | Unknown |
| CVE-2016-8562 | SIMATIC CP | Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability | 2022-03-03 | Unknown |
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.
Highest exploit-prediction scores (EPSS)
EPSS estimates the probability that a vulnerability is exploited in the next 30 days. These are the 10 highest-scoring Siemens records today.
| CVE | EPSS | Percentile | Severity | In KEV |
|---|---|---|---|---|
| CVE-2023-33919 | 47.7% | 98.8% | High | No |
| CVE-2021-33731 | 46.6% | 98.8% | Not scored | No |
| CVE-2021-37200 | 37.4% | 98.5% | Not scored | No |
| CVE-2022-23450 | 35.7% | 98.5% | Not scored | No |
| CVE-2022-45092 | 31.4% | 98.3% | Critical | No |
| CVE-2022-29034 | 28.7% | 98.1% | Medium | No |
| CVE-2021-33730 | 27.7% | 98.1% | Not scored | No |
| CVE-2021-33732 | 27.7% | 98.1% | Not scored | No |
| CVE-2021-33734 | 27.7% | 98.1% | Not scored | No |
| CVE-2020-25237 | 20.6% | 97.5% | Not scored | No |
Source: FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.