Missing GRUB password in B&R APROL
Priority LOW 32CWE-306Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
A Missing Authentication for Critical Function vulnerability in the GRUB configuration used B&R APROL <4.4-01 may allow an unauthenticated physical attacker to alter the boot configuration of the operating system.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Fix Fixed APROL (B&R Industrial Automation GmbH): 4.4-01
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 | 4.4 to before 4.4-01 | 4.4-01 | Patch available | CNA |
- APROL VendorB&R Industrial Automation Affected 4.4 to before 4.4-01 Fixed in 4.4-01 Patch available CNA
Remediation
- Fix · CNA APROL (B&R Industrial Automation GmbH) Fixed in 4.4-01
Timeline
- 2026-10-02 Threatist record created from CVE-2024-45483
- 2026-10-03 Alias added: GHSA-mhcg-8f2w-mrwx
References
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-2024-45483 · CVE Program
- CVE-2024-45483 · NVD
- FIRST EPSS
- GHSA-mhcg-8f2w-mrwx · GitHub Advisory Database · CC BY 4.0
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