Zip Slip Vulnerability in B&R Automation Studio Project Import
Priority LOW 33CWE-23Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
: Relative Path Traversal vulnerability in B&R Industrial Automation Automation Studio allows Relative Path Traversal.This issue affects Automation Studio: from 4.0 through 4.12.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00376 31st 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
- No
- 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 | Automation Studio | 4.0 – 4.12 | — | No fix listed | CNA |
- Automation Studio VendorB&R Industrial Automation Affected 4.0 – 4.12 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:br-automation:automation_studio:*:*:*:*:*:*:*:* | 4.0 – 4.12 | Vulnerable | B&R Industrial Automation |
- cpe:2.3:a:br-automation:automation_studio:*:*:*:*:*:*:*:* Versions 4.0 – 4.12 Vulnerable ·B&R Industrial Automation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22281
- 2026-10-03 Alias added: GHSA-p434-7834-2w5x
References
More B&R Industrial Automation Automation Studio vulnerabilities
- TI-2019-13790 B&R Automation Runtime SNMP Authentication and Authorization Weakness CVSS 3.1CRITICAL 9.4
- TI-2020-15148 Automation Studio and PVI Multiple incorrect permission assignments for services CVSS 3.1HIGH 8.8
- TI-2024-00198 B&R products use insufficient communication encryption CVSS 3.1HIGH 8.3
- TI-2021-05260 RCE in B&R Automation Studio with crafted project files CVSS 3.1HIGH 8.3
- TI-2020-15149 Automation Studio and PVI Multiple unquoted service path vulnerabilities CVSS 3.1HIGH 7.8
- TI-2019-13785 Zip Slip vulnerability in 3rd-Party library in B&R Automation Studio upgrade service CVSS 3.1HIGH 7.5
Sources
- CVE-2021-22281 · CVE Program
- CVE-2021-22281 · NVD
- FIRST EPSS
- GHSA-p434-7834-2w5x · GitHub Advisory Database · CC BY 4.0
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