DoS in APROLs Tbase server
Priority MEDIUM 40CWE-252Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
B&R APROL versions < R 4.2-07 doesn’t process correctly specially formatted data packages sent to port 55502/tcp, which may allow a network based attacker to cause an application Denial-of-Service.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00616 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
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 | B&R APROL | < R 4.2-07 | — | No fix listed | CNA |
- B&R APROL VendorB&R Industrial Automation Affected < R 4.2-07 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:br-automation:industrial_automation_aprol:*:*:*:*:*:*:*:* | before r4.2-07 | Vulnerable | B&R Industrial Automation |
- cpe:2.3:a:br-automation:industrial_automation_aprol:*:*:*:*:*:*:*:* Versions before r4.2-07 Vulnerable ·B&R Industrial Automation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-43765
- 2026-10-03 Alias added: GHSA-9fr2-r98v-qc2f
References
More B&R Industrial Automation Industrial Automation Aprol vulnerabilities
- 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-2019-14326 An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. CVSS 3.1CRITICAL 9.8
- TI-2019-14327 An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. CVSS 3.1CRITICAL 9.8
- TI-2019-14328 An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-43765 · CVE Program
- CVE-2022-43765 · NVD
- FIRST EPSS
- GHSA-9fr2-r98v-qc2f · GitHub Advisory Database · CC BY 4.0
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