Authenticated unintended access to critical program parameters
Priority MEDIUM 40CWE-425Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- 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-425.
Summary
An high privileged remote attacker can access a hidden configuration method, that should not be accessible by any user, to modify critical program parameters. This can result in a total loss of confidentiality, integrity and availability.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00551 46th percentileScored 2026-11-07
Fix Fixed mbCONNECT24 (MB connect line): 2.20.2mymbCONNECT24 (MB connect line): 2.20.2
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 |
|---|---|---|---|---|---|
| MB connect line | mbCONNECT24 | 0.0.0 to before 2.20.2 | 2.20.2 | Patch available | CNA |
| MB connect line | mymbCONNECT24 | 0.0.0 to before 2.20.2 | 2.20.2 | Patch available | CNA |
| MB connect line | mbCONNECT24 | 2.20.1 | — | No fix listed | CNA |
| MB connect line | mymbCONNECT24 | 2.20.1 | — | No fix listed | CNA |
- mbCONNECT24 VendorMB connect line Affected 0.0.0 to before 2.20.2 Fixed in 2.20.2 Patch available CNA
- mymbCONNECT24 VendorMB connect line Affected 0.0.0 to before 2.20.2 Fixed in 2.20.2 Patch available CNA
- mbCONNECT24 VendorMB connect line Affected 2.20.1 Fixed in — No fix listed CNA
- mymbCONNECT24 VendorMB connect line Affected 2.20.1 Fixed in — No fix listed CNA
Remediation
- Fix · CNA mbCONNECT24 (MB connect line) Fixed in 2.20.2
- Fix · CNA mymbCONNECT24 (MB connect line) Fixed in 2.20.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-10521
- 2026-10-03 Alias added: GHSA-vwqx-9g89-x938
References
More MB connect line vulnerabilities
- TI-2024-30346 MB connect line/Helmholz: Remote code execution via confnet service CVSS 3.1CRITICAL 9.8
- TI-2026-25416 Unauthenticated RCE in com_mb24sysapi CVSS 3.1CRITICAL 9.8
- TI-2024-30347 MB connect line/Helmholz: Hardcoded user accounts with hard-coded passwords CVSS 3.1CRITICAL 9.8
- TI-2021-12922 OS Command Injection in mbDIALUP <= 3.9R0.0 CVSS 3.1CRITICAL 9.8
- TI-2024-15924 MB connect line: Cloud API access due to a lack of authentication for a critical function CVSS 3.1CRITICAL 9.1
- TI-2026-25997 MB connect line mbCONNECT24 vulnerable to an unauthenticated SQL injection in the setinfo Endpoint CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-10521 · CVE Program
- CVE-2026-10521 · NVD
- FIRST EPSS
- GHSA-vwqx-9g89-x938 · GitHub Advisory Database · CC BY 4.0
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