Quick answers
- Is CVE-2026-40819 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-40819 being exploited in the wild.
- How severe is CVE-2026-40819?
- High severity, with a CVSS score of 7.5, published 27 May 2026.
- Which products and versions are affected?
- MB connect line mbCONNECT24 <= 2.20.0; MB connect line mymbCONNECT24 <= 2.20.0.
- Is there a fix for CVE-2026-40819?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-40819 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-40819?
- Check whether you run MB connect line mbCONNECT24 or MB connect line mymbCONNECT24 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A SQL injection vulnerability exists in the 'sync_data24' task of MB connect line mbCONNECT24 and mymbCONNECT24 firmware versions up to and including 2.20.0. The flaw is caused by improper neutralization of special elements within a SQL SELECT command. An unauthenticated remote attacker can exploit this by sending specially crafted network requests to the affected component. Successful exploitation allows the attacker to execute arbitrary SQL queries, potentially leading to the unauthorized extraction of the entire database. The vulnerability is tracked as CVE-2026-40819 and has been assigned a CVSS v3.1 base score of 7.5.
Affected products
- MB connect line mbCONNECT24 <= 2.20.0
- MB connect line mymbCONNECT24 <= 2.20.0
Timeline
- 2026-05-27: disclosed
- 2026-05-27: advisory