ICS Security Week in Review — 21 April 2026
This week's advisory feeds produced 33 ICS security advisories across 17 vendors.
At a Glance
| | |
|---|---|
| Total advisories | 33 |
| Critical severity | 3 |
| High severity | 1 |
| Actively exploited (CISA KEV) | 0 |
| Vendors affected | 17 |
By source:
- BSI CERT-Bund (EU): 21
- Siemens ProductCERT: 8
- CISA ICS-CERT: 4
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Top Advisories This Week
#### 🔴 ICSA-26-106-03 — CVSS 9.8
Anviz Multiple Products
Affected: Anviz — CVE-2026-33093, CVE-2026-35061 +10 more
#### 🔴 ICSA-26-106-02 — CVSS 9.1
Horner Automation Cscape and XL4, XL7 PLC
Affected: Horner Automation — CVE-2026-6284
#### 🔴 ICSA-26-106-04 — CVSS 9.1
AVEVA Pipeline Simulation
Affected: AVEVA — CVE-2026-5387
#### 🟠 ICSA-26-106-01 — CVSS 7.8
Delta Electronics ASDA-Soft
Affected: Delta Electronics — CVE-2026-5726
#### ⚪ wid-sec-w-2026-1180 — CVSS 0.0
Linux Kernel: Multiple Vulnerabilities
Affected: Open Source — CVE-2026-31429, CVE-2026-31430
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Most Active Vendors This Week
- Open Source — 11 advisories
- Siemens — 8 advisories
- Apache — 3 advisories
- Anviz — 1 advisory
- Horner Automation — 1 advisory
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