Improper Certificate Validation
Priority MEDIUM 41CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.
Summary
Improper certificate validation vulnerability in B&R Industrial Automation GmbH APROL. This issue affects APROL: before R 4.4-01P5.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00222 12th percentileScored 2026-11-07
Fix Fixed APROL (B&R Industrial Automation GmbH): R 4.4-01P5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| B&R Industrial Automation | APROL | before R 4.4-01P5 | R 4.4-01P5 | Patch available | CNA |
- APROL VendorB&R Industrial Automation Affected before R 4.4-01P5 Fixed in R 4.4-01P5 Patch available CNA
Remediation
- Fix · CNA APROL (B&R Industrial Automation GmbH) Fixed in R 4.4-01P5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
B&R Industrial Automation APROL R 4.4-01P5
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-06050 Untrusted search path in B&R Industrial Automation APROLPriority LOW 38
Timeline
- 2026-10-02 Threatist record created from CVE-2026-6900
- 2026-10-03 Alias added: GHSA-4q88-82vm-7283
More B&R Industrial Automation vulnerabilities
- TI-2023-01522 Improper Authentication Mechanism in B&R VC4 Visualization CVSS 3.1CRITICAL 9.8
- TI-2022-21498 Buffer overflow when changing configuration on Tbase Server CVSS 3.1CRITICAL 9.8
- TI-2022-21496 Memory leak when receiving messages in APROL Tbase server CVSS 3.1CRITICAL 9.8
- TI-2022-21495 Lack of authentication when managing APROL database CVSS 3.1CRITICAL 9.4
- TI-2024-30523 Unauthorized local file reading in B&R APROL CVSS 4.0CRITICAL 9.2
- TI-2024-00297 FTP uses unsecure encryption mechanisms CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-6900 · CVE Program
- CVE-2026-6900 · NVD
- FIRST EPSS
- GHSA-4q88-82vm-7283 · GitHub Advisory Database · CC BY 4.0
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