Quick answers
- Is CVE-2026-27874 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-27874 being exploited in the wild.
- How severe is CVE-2026-27874?
- Informational severity, published 1 October 2026.
- Which products and versions are affected?
- Johnson Controls EasyIO FS32 before 3.0b63.
- Is there a fix for CVE-2026-27874?
- Yes: fixed in 3.0b63. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-27874 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-27874?
- Check whether you run Johnson Controls EasyIO FS32 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.
How to fix
- Fixed in: 3.0b63
Technical details
The EasyIO FS32 controller contains hard-coded credentials that can be exploited to authenticate without legitimate authorization. An attacker with network access to the device can leverage these credentials to gain administrative control. The vulnerability affects versions before 3.0b63.
Affected products
- Johnson Controls EasyIO FS32 before 3.0b63
Timeline
- 2026-10-01: disclosed